Your port 6346 is being blocked. It will be either due to your ISP or your router. If you port forwarded, did you set up a static IP first? If done at any other stage other than first, then the process won't work & you'd need to delete that firewall rule & do it again, with a static ip set up before you actually start setting up the firewall rule. Make sure LW's setting is set for port forward & not UPnP; Manual port forward instructions & sample image

Also see Windows Firewall - LimeWire about allowing LW full access thru your xp firewall.

If it is your ISP blocking port 6346, call them to unblock it or at least ask them why it is blocked. You could also try port forwarding a much higher port such as between 49152 - 65535. LW's port for connection & listening setting would also need to be changed.