Well I found this and it worked for me.

1.get file gnutella.zip from here (right click - save target as )

http://minasbeis.tripod.com/gnutella.zip

and unzip it

2.go to directory
C:\Documents And Settings\username\Application Data\LimeWire
(where username is the name you use to login to your PC) and replace the existing file gnutela.net with that

3.restart limewire.