try those address in the connection tab one per one and the press add
connect1.bearshare.net
connect2.bearshare.net
connect3.bearshare.net
router.limewire.com
connect1.gnutellanet.com
connect2.gnutellanet.com
connect3.gnutellanet.com
connect4.gnutellanet.com
gnutella.hostscache.com
gnet2.ath.cx:6346

one of them should work, press add after limewire has given up for router.limewire.com