Application Name: Limewire
Protocol:TCP or UDP Do one rule for each
Port (or Range): From: XXXXX To: XXXXX being the same port as set in your Limewire options. Try 64046
Protocol Timeout (seconds): Keep default numbers TCP default 86400 UDP default 600
Map to Host Port: XXXXX Default = the same port as defined above.
Application Type: P2P None (Default) File Transfer Protocol (FTP) Microsoft Games H.323-based Internet telephony IRC (Internet relay chat) server PPTP virtual private network server

Note you need to set up a static IP on your PC, so the forwarded IP doesn't change. Check out PortForward.com - Free Help Setting up Your Router or Firewall