I have noticed in the two Escape Artists podcasts I listen to (Escape Pod and Podcastle), the hosts will use the URLs 'forum.escapeartists.net', 'forums.escapeartists.net', 'forum.escapeartists.info', and 'forums.escapeartists.info' interchangeable, but not all of these map to the right place ('forum[s ]?.escapartists.(net|info)' if you want to be more precise as to the differences between the 4 URLs).
My suggestion would be to make sure that all 4 of these go to the same forums. It looks as though the only URL that is still lacking is 'forums.escapeartists.info'.
Just my $0.02...
-jalsk