Links not accessible

Hi, 
I am trying to use the PIMO and DLPO ontology but the provided links for these ontologies (http://www.semanticdesktop.org/ontologies/2011/10/05/dlpo# , http://www.semanticdesktop.org/ontologies/2007/11/01/pimo# ) are not accessible.
So please Can someone provide me by helpful links.
Thanks in advance.