diff --git a/upload/admins/pages/add.php b/upload/admins/pages/add.php
index e8838f29..4f425405 100644
--- a/upload/admins/pages/add.php
+++ b/upload/admins/pages/add.php
@@ -159,20 +159,25 @@
 $position = $order->get_new($parent);
 
 // Work-out if the page parent (if selected) has a seperate template or language to the default
-$query_parent = $database->query("SELECT template, language FROM ".TABLE_PREFIX."pages WHERE page_id = '$parent'");
-if($query_parent->numRows() > 0)
-{
-	$fetch_parent = $query_parent->fetchRow( MYSQL_ASSOC );
-	$template = $fetch_parent['template'];
-	$language = $fetch_parent['language'];
-} else {
-	$template = '';
-	$language = DEFAULT_LANGUAGE;
+$template = '';
+$language = DEFAULT_LANGUAGE;
+if($parent != '0'){
+	$query_parent = $database->query("SELECT template, language FROM ".TABLE_PREFIX."pages WHERE page_id = '$parent'");
+	if($query_parent->numRows() > 0)
+	{
+		$fetch_parent = $query_parent->fetchRow( MYSQL_ASSOC );
+		$template = $fetch_parent['template'];
+		$language = $fetch_parent['language'];
+	}
 }
 
 // Insert page into pages table
 $sql  = 'INSERT INTO `'.TABLE_PREFIX.'pages` SET ';
-$sql .= '`parent` = '.$parent.', ';
+if($parent != '0'){
+	$sql .= '`parent` = '.$parent.', ';
+}else{
+	$sql .= '`parent` = NULL, ';
+}
 $sql .= '`target` = "_top", ';
 $sql .= '`page_title` = "'.$title.'", ';
 $sql .= '`menu_title` = "'.$title.'", ';
diff --git a/upload/admins/pages/index.php b/upload/admins/pages/index.php
index c1873310..32a4529d 100644
--- a/upload/admins/pages/index.php
+++ b/upload/admins/pages/index.php
@@ -166,7 +166,7 @@
   );
   $template->parse('page_list2', 'page_list_block2', true);
 }
-parent_list(0);
+parent_list();
 
 // Explode module permissions
 $module_permissions = $_SESSION['MODULE_PERMISSIONS'];
@@ -241,13 +241,19 @@
 
 
 // Parent page list
-function parent_list($parent)
+function parent_list($parent = null)
 {
   global $admin, $database, $template, $field_set;
 
+  if(is_null($parent)){
+    $parent = 'is null';
+  }else{
+    $parent = ' = ' . $parent;
+  }
+
   $admin_user_id = $admin->get_user_id();
 
-  $query = "SELECT `page_id`,`admin_groups`,`admin_users`,`menu_title`,`page_title`,`visibility`,`parent`,`level`,`viewing_groups`,`viewing_users` FROM ".TABLE_PREFIX."pages WHERE parent = '$parent' AND visibility!='deleted' ORDER BY position ASC";
+  $query = "SELECT `page_id`,`admin_groups`,`admin_users`,`menu_title`,`page_title`,`visibility`,`parent`,`level`,`viewing_groups`,`viewing_users` FROM ".TABLE_PREFIX."pages WHERE parent $parent AND visibility!='deleted' ORDER BY position ASC";
   $get_pages = $database->query($query);
   while($page = $get_pages->fetchRow( MYSQL_ASSOC )) {
     if($admin->page_is_visible($page)==false)
@@ -302,7 +308,12 @@ function url_encode($string) {
 	return str_replace($entities, $replacements, rawurlencode($string));
 }
 
-function make_list($parent = 0, &$editable_pages = 0) {
+function make_list($parent = null, &$editable_pages = 0) {
+  if(is_null($parent)){
+      $parent_cond = 'is null';
+  }else{
+      $parent_cond = ' = ' . $parent;
+  }
   // Get objects and vars from outside this function
   global $admin, $database, $TEXT, $MESSAGE, $HEADING, $par;
   $template = new Template(THEME_PATH.'/templates');
@@ -333,7 +344,7 @@ function make_list($parent = 0, &$editable_pages = 0) {
 	}
 
   // Get page list from database
-  $sql = 'SELECT * FROM `'.TABLE_PREFIX.'pages` WHERE `parent` = '.$parent.' ';
+  $sql = 'SELECT * FROM `'.TABLE_PREFIX.'pages` WHERE `parent` '.$parent_cond.' ';
   $sql .= (PAGE_TRASH != 'inline') ?  'AND `visibility` != \'deleted\' ' : ' ';
   $sql .= 'ORDER BY `position` ASC';
   $get_pages = $database->query($sql);
@@ -560,7 +571,7 @@ function print_list_page(){
     $par['num_subs'] = 1;
 
     $editable_pages = 0;
-    $loop = make_list(0, $editable_pages);
+    $loop = make_list(null, $editable_pages);
     $template->set_var('PAGES_LIST_LOOP', $loop);
     $template->parse('pages_list', 'page_list_block');
     $template->parse('main', 'main_block');
@@ -684,4 +695,4 @@ function handle_search () {
 }
 // ----- BlackBird Search ID Hack Part II ----
 
-?>
\ No newline at end of file
+?>
diff --git a/upload/admins/pages/settings.php b/upload/admins/pages/settings.php
index 0b1da4d1..43b8e8be 100644
--- a/upload/admins/pages/settings.php
+++ b/upload/admins/pages/settings.php
@@ -272,11 +272,15 @@
 }
 
 // Parent page list
-function parent_list($parent)
+function parent_list($parent = null)
 {
 	global $admin, $database, $template, $results_array,$field_set;
 
-    $sql = 'SELECT * FROM `'.TABLE_PREFIX.'pages` WHERE `parent` = '.$parent.' ORDER BY `position` ASC';
+	if(is_null($parent)){
+		$sql = 'SELECT * FROM `'.TABLE_PREFIX.'pages` WHERE `parent` IS NULL ORDER BY `position` ASC';
+	}else{
+		$sql = 'SELECT * FROM `'.TABLE_PREFIX.'pages` WHERE `parent` = '.$parent.' ORDER BY `position` ASC';
+	}
     $get_pages = $database->query($sql);
 
 	while(false !== ($page = $get_pages->fetchRow( MYSQL_ASSOC ) ) )
@@ -351,7 +355,7 @@ function parent_list($parent)
 
 $template->set_block('main_block', 'page_list_block2', 'page_list2');
 if($admin->get_permission('pages_add_l0') == true OR $results_array['level'] == 0) {
-	if($results_array['parent'] == 0)
+	if(is_null($results_array['parent']))
     {
 		$selected = ' selected="selected"';
 	} else { 
@@ -365,7 +369,7 @@ function parent_list($parent)
 	);
 	$template->parse('page_list2', 'page_list_block2', true);
 }
-parent_list(0);
+parent_list();
 
 if($modified_ts == 'Unknown')
 {
diff --git a/upload/admins/pages/settings2.php b/upload/admins/pages/settings2.php
index 0a4a1fba..0f43c5e1 100644
--- a/upload/admins/pages/settings2.php
+++ b/upload/admins/pages/settings2.php
@@ -62,7 +62,7 @@
 $description = htmlspecialchars(addslashes($admin->get_post('description')) );
 $keywords = htmlspecialchars(addslashes($admin->get_post('keywords')) );
 $page_code = htmlspecialchars(addslashes($admin->get_post('page_code')));
-$parent = $admin->get_post_escaped('parent');
+$parent = ($admin->get_post_escaped('parent') == '0') ? null : $admin->get_post_escaped('parent');
 $visibility = $admin->get_post_escaped('visibility');
 $template = $admin->get_post_escaped('template');
 $target = $admin->get_post_escaped('target');
@@ -131,18 +131,18 @@
 }
 
 // Work out level and root parent
-if ($parent!='0')
+if (!is_null($parent))
 {
 	$level = level_count($parent)+1;
 	$root_parent = root_parent($parent);
 }
 else {
 	$level = '0';
-	$root_parent = '0';
+	$root_parent = $page_id;
 }
 
 // Work-out what the link should be
-if($parent == '0')
+if(is_null($parent))
 {
 	$link = '/'.page_filename($page_link);
 	// rename menu titles: index && intro to prevent clashes with intro page feature and WB core file /pages/index.php
@@ -178,7 +178,7 @@
 }
 
 // Update page with new order
-$sql = 'UPDATE `'.TABLE_PREFIX.'pages` SET `parent`='.$parent.', `position`='.$position.' WHERE `page_id`='.$page_id.'';
+$sql = 'UPDATE `'.TABLE_PREFIX.'pages` SET `parent`= ' . ((is_null($parent)) ? 'NULL' : $parent) . ' , `position`='.$position.' WHERE `page_id`='.$page_id.'';
 $database->query($sql);
 
 // Get page trail
@@ -186,13 +186,13 @@
 
 // Update page settings in the pages table
 $sql  = 'UPDATE `'.TABLE_PREFIX.'pages` SET ';
-$sql .= '`parent` = '.$parent.', ';
+$sql .= '`parent` = ' . ((is_null($parent)) ? 'NULL' : $parent) . ', ';
 $sql .= '`page_title` = "'.$page_title.'", ';
 $sql .= '`menu_title` = "'.$menu_title.'", ';
 $sql .= '`menu` = '.$menu.', ';
 $sql .= '`level` = '.$level.', ';
 $sql .= '`page_trail` = "'.$page_trail.'", ';
-$sql .= '`root_parent` = '.$root_parent.', ';
+$sql .= '`root_parent` = '.((is_null($root_parent)) ? 'NULL' : $root_parent).', ';
 $sql .= '`link` = "'.$link.'", ';
 $sql .= '`template` = "'.$template.'", ';
 $sql .= '`target` = "'.$target.'", ';
@@ -282,7 +282,7 @@ function fix_page_trail($parent,$root_parent)
 	// Get objects and vars from outside this function
 	global $admin, $template, $database, $TEXT, $MESSAGE;
 	// Get page list from database
-	$query = "SELECT page_id FROM ".TABLE_PREFIX."pages WHERE parent = '$parent'";
+	$query = "SELECT page_id FROM ".TABLE_PREFIX."pages WHERE parent " . ((is_null($parent)) ? 'IS NULL' : "= '$parent'");
 	$get_pages = $database->query($query);
 	// Insert values into main page list
 	if($get_pages->numRows() > 0)
@@ -291,7 +291,7 @@ function fix_page_trail($parent,$root_parent)
         {
 			// Fix page trail
 
-			$database->query("UPDATE ".TABLE_PREFIX."pages SET ".($root_parent != 0 ?"root_parent = '$root_parent', ":"")." page_trail = '".get_page_trail($page['page_id'])."' WHERE page_id = '".$page['page_id']."'");
+			$database->query("UPDATE ".TABLE_PREFIX."pages SET ".((is_null($root_parent)) ? "root_parent = '$root_parent', " : "")." page_trail = '".get_page_trail($page['page_id'])."' WHERE page_id = '".$page['page_id']."'");
 			// Run this query on subs
 			fix_page_trail($page['page_id'],$root_parent);
 		}
diff --git a/upload/framework/class.frontend.php b/upload/framework/class.frontend.php
index 8f1f0463..671c14a9 100644
--- a/upload/framework/class.frontend.php
+++ b/upload/framework/class.frontend.php
@@ -107,7 +107,7 @@ function page_select()
 		$table_p          = TABLE_PREFIX . 'pages';
 		$table_s          = TABLE_PREFIX . 'sections';
 		$now              = time();
-		$query_default    = "SELECT `p`.`page_id`, `link` FROM `$table_p` AS `p` INNER JOIN `$table_s` USING(`page_id`) WHERE `parent` = '0' 
+		$query_default    = "SELECT `p`.`page_id`, `link` FROM `$table_p` AS `p` INNER JOIN `$table_s` USING(`page_id`) WHERE `parent` is null 
 		AND `visibility` = 'public'	AND (($now>=`publ_start` OR `publ_start`=0) AND ($now<=`publ_end` OR `publ_end`=0))	$this->sql_where_language	ORDER BY `p`.`position` ASC LIMIT 1";
 		$get_default      = $database->query( $query_default );
 		$default_num_rows = $get_default->numRows();
@@ -669,4 +669,4 @@ private function __find_files( &$aFilenames, &$aBasename, &$aStorrage, &$exeptio
 	}
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/upload/framework/functions/function.root_parent.php b/upload/framework/functions/function.root_parent.php
index bfa9d223..fa5b9041 100644
--- a/upload/framework/functions/function.root_parent.php
+++ b/upload/framework/functions/function.root_parent.php
@@ -60,7 +60,7 @@ function root_parent( $page_id )
 		{
 			return $parent;
 		} //$level == 1
-		elseif ( $parent == 0 )
+		elseif (is_null($parent))
 		{
 			return $page_id;
 		} //$parent == 0
diff --git a/upload/install/save.php b/upload/install/save.php
index 3bbbe38f..32392df2 100644
--- a/upload/install/save.php
+++ b/upload/install/save.php
@@ -546,8 +546,8 @@ function install_createGUID()
 	// Try installing tables
 	// Pages table
 	$pages = 'CREATE TABLE `'.TABLE_PREFIX.'pages` ( `page_id` INT NOT NULL auto_increment,'
-	       . ' `parent` INT NOT NULL DEFAULT \'0\','
-	       . ' `root_parent` INT NOT NULL DEFAULT \'0\','
+	       . ' `parent` INT DEFAULT NULL,'
+	       . ' `root_parent` INT DEFAULT NULL,'
 	       . ' `level` INT NOT NULL DEFAULT \'0\','
 	       . ' `link` TEXT NOT NULL,'
 	       . ' `target` VARCHAR( 7 ) NOT NULL DEFAULT \'\' ,'
@@ -561,7 +561,7 @@ function install_createGUID()
 	       . ' `position` INT NOT NULL DEFAULT \'0\','
 	       . ' `menu` INT NOT NULL DEFAULT \'0\','
 	       . ' `language` VARCHAR( 5 ) NOT NULL DEFAULT \'\' ,'
-	       . ' `page_code` VARCHAR( 100 ) NOT NULL DEFAULT \'\' ,'         
+	       . ' `page_code` VARCHAR( 100 ) NOT NULL DEFAULT \'\' ,'
 	       . ' `searching` INT NOT NULL DEFAULT \'0\','
 	       . ' `admin_groups` TEXT NOT NULL ,'
 	       . ' `admin_users` TEXT NOT NULL ,'
@@ -576,7 +576,7 @@ function install_createGUID()
 
 	// Sections table
 	$sections = 'CREATE TABLE `'.TABLE_PREFIX.'sections` ( `section_id` INT NOT NULL auto_increment,'
-	       . ' `page_id` INT NOT NULL DEFAULT \'0\','
+	       . ' `page_id` INT DEFAULT NULL,'
 	       . ' `position` INT NOT NULL DEFAULT \'0\','
 	       . ' `module` VARCHAR( 255 ) NOT NULL DEFAULT \'\' ,'
 	       . ' `block` VARCHAR( 255 ) NOT NULL DEFAULT \'\' ,'
@@ -656,7 +656,7 @@ function install_createGUID()
 
 	// Users table
 	$users = 'CREATE TABLE `'.TABLE_PREFIX.'users` ( `user_id` INT NOT NULL auto_increment,'
-	       . ' `group_id` INT NOT NULL DEFAULT \'0\','
+	       . ' `group_id` INT DEFAULT NULL,'
 	       . ' `groups_id` VARCHAR( 255 ) NOT NULL DEFAULT \'0\','
 	       . ' `active` INT NOT NULL DEFAULT \'0\','
 		   . ' `statusflags` INT NOT NULL DEFAULT \'6\','
@@ -1004,4 +1004,4 @@ function install_createGUID()
 // redirect to the backend login
 header("Location: ../install/support.php" );
 
-?>
\ No newline at end of file
+?>