Recently the CVS infrastructure of SourceForge.net has been significantly changed, following this developement the hostname of the CVS server was changed from cvs.sourceforge.net to [PROJECTNAME].cvs.sourceforge.net. So a CVS login for Cal3d would look like this cvs -d:pserver:anonymous@cal3d.cvs.sourceforge.net:/cvsroot/cal3d login.
The only reason I mention this is that I think the build guides on laanx.fragnetics.com should be adjusted to this change.
Edit: More inforrmation can be found
here