Try portforwarding your LinkSys instead of disabling the firewall in it.

There is a good chance that you will find an exact guide on how to do this on this page. Just choose Forwarding, scroll down to your router,click it and then choose Limewire the same way.

www.portforward.com

Just remember the importance of having a static IP and that forwarded port and listening port have to be the same. And remember that there is only one port needed for Limewire.

And by the way GPS mapping is not sure to bring up many hits. Depends pretty much on filenames and format.