1. Sometimes the XP firewall control panel is difficult to find depending on your set up. See about the 2 ways of finding it & disabling it here 
http://www.gnutellaforums.com/showth...842#post178842 & oh also this link 
http://www.gnutellaforums.com/showth...620#post178620 
2. After disabling XP's firewall, be sure you configure Norton firewall to allow LW full access. See  
Configuring Norton Internet Security 
3. If still problems then see  
System details - help us to help you (click on link) 
4. Also consider deleting your LW Preferences folder whilst LW is 
closed; instructions here: 
Point # 3 in Fixes for Limewire (sample image included at bottom of page.)