The problem with LW's installer is that it only installs version 1.3 That's why I ercommended you update to 1.4.2
Make a note of all your LW settings & delete your LW preferences folder called
.limewire & found here: C:/Documents And Settings/your_username/.limewire
Once you delete this folder you'll need to reset your LW options.
Go here & do you get a test page was a success message:
http://www3.limewire.com:6346/ if yes then your not too badly firewalled.