i believe the client identifies what client it is (morpheus,grokster,kazaa)
kazaa forcfully removed all morpheus supernodes from the network by fucking their supernode userlist, and preventing them from getting a new one (i'ld assume they point it to the ad server instead of the server that feeds ip's of supernodes)
no morpheus supernodes means nowhere for morpheus users to connect to, as version 1.5 of the client prevents anything that identifies as morpheus not to connect, and now even more so they wont connect 1.3.x clients either (no matter what brand)
you can still use the client if u find a supernodes ip, add it manually and dont log in.. (also beat the program to the search button before it greys it out
to much of a much around for me..