Here is 1 link

http://www.gnutellaforums.com/showthread.php?t=56904

This patch does wonders if using XP with service pack 2

http://www.gnutellaforums.com/showthread.php?t=57438

just make sure that your setup is correct

Set max upload speed to about 80 % of your max

and downloadspeed to maximum if on a fast connection 1Mbit or above. If not then about 90 % of max should allow enough bandwidth for messages

Just start reading through other threads (especially the Sticky ones. Ignore the thread about adding 192.168.*.* and 10.*.*.* to IP filter (outdated) also ignore the showing only 4 star results. You can still keep in mind that there are some 2 star results that won't work though

It's in this thread http://www.gnutellaforums.com/showthread.php?t=17321