I can't see any sign of Pipex in this thread .. but they might be candidates for a new addition...
http://www.gnutellaforums.com/showth...threadid=33712
You can try changing ports etc
http://www.gnutellaforums.com/showth...threadid=32882
and it also worth talking to someone other than a bored switchboard operator to see exactly hat your pasition is re. p2p