Tiffany2622 you don't need 2 firewalls active. In fact I believe Norton actually recommends against running 2 firewalls. So close down your XP firewall & configure your norton firewall to allow LW full access:
Configuring Norton Internet Security (click on link)
(Go to LW's menu Help>About LW...) Will show both LW & Java version.
Try deleting your LW Preferences folder whilst LW is closed; instructions here:
Fixes for Limewire
CD 1986: Did you set LW for manual port forwarding:
Manual port forward instructions & sample image & 2 posts after that. And choose a port no.
After opening LW let it sit & give it some time to connect .. perhaps up to 30+ mins.