Check out JackSpratts' thread in this forum on how to install Grokster without spyware. It's the same network Morpheus used to connect to, and the program is almost exactly the same too. I saw this method on Zeropaid a few days ago, and it worked really well for me.
If you want to connect to Gnutella, which is where the new Morpheus client connects, this is probably a better option than Morpheus:
http://cleanlimewire.com
-Tom