Take a look here http://www.zeropaid.com/bbs/showthread.php...?threadid=10120
That article is well old. They were eDonkey2000 and BitTorrent.
Edit: It is legally impossible for Shareaza to connect to FastTrack , Sharman Networks would sue Mike. Soon enough, maybe, a plugin may be designed with the aid of the protocol details of Project FastTrack.