How many green (or blue) bars do you see in the bottom left corner of your screen? This will tell you how strong your connection is.
When you tested port 6346 (Limewire's default port number) it said 'this page cannot be displayed'. This means that the port isn't available. Maybe you should try a different port.
http://www.gnutellaforums.com/tips-t...formation.html
Tools...options...advanced...firewall configuration (I think!)
Good Luck
Dano