Try port forwarding. If you go to the link below, you'll find instructions for your router. Don't forget to set up a static IP (there's a link within the link below), else port forwding won't work
Remember...your LW listening port, port forwarded thru your router & port number to manually port forward within LW's firewall config page must all be the same! After setting up the p/f, it might take a while (say up to 1/2 hour) for the firewall icon to disappear.
http://www.portforward.com/english/r...R/Limewire.htm
Rather than running without a software firewall, configure the XP firewall to allow LW.
http://www.limewire.org/wiki/index.p...r_Cant_Connect