Dump aol & you'll be a lot better for it. I hate answering aol questions because they're not easy to solve. Plus AOL plus, has extra security which does no good for LW. In fact it has spyware program that thinks LW is spyware. duh! You're better off turning off AOL security!!!!!
Did you configure your firewall so it allows LW full access (advisable not to have 2 active firewalls b/c they can interfere with each other);
Firewall configuration instructions (click on link)
More about norton here (a)
Configuring Norton Internet Security, & (b)
Reconfiguring Norton Firewall
Just in case, check steps 1-5 here
Fixes for Limewire (ignore step 4)