Have you checked to see whether your ISP is blocking p2p? If more than one p2p app won't work, sounds to me like an ISP issue.

Try to download a magnet link, see LOTR's post here
http://www.gnutellaforums.com/showth...download+speed

Just make sure your LW is set up for optimal performance
http://www.gnutellaforums.com/showth...threadid=27036
Are you seeing the firewall icon?