There are p2p networks, gnutella and fasttrack. The old morpheus ran on fastrack but the new one runs on gnutella. Fasttrack is propietary and the owner is kazaa. Gnutella is general public license. apparently there were some business problems between Kazaa (Shaman) and Morpheus (Musiccity) and morpheus had to leave the fastrack network.
You could still use kazaa and look for a spyware remover and a crack.