Apollon is the best client for this it has openft, gntella, and fastrack (Kazaa). There is a installer at sourceforge.net just a note for me the gntella plugin did not work and it kept the app from working just disable it.
APollon is just a frontend to gift "engine". dries' packages of plugins are a lot outdate :/
check new version of gnutella plugin =) (gnutella, openft, fasttrack ... ;) )
