You can only become an UltraPeer if there is an open port for Limewire in your firewall i.e. no wall in front of blue Earth.

I made a guide on how to force UP once. Maybe that will help: http://www.gnutellaforums.com/limewi...pro-basic.html

For help on getting rid of that wall, try looking for your router brand here: www.portforward.com