we experience too many problems in finding the entry host to the Gnutella network. Until a working host catcher system is implemented, there is no need to spend time using GPU.

However, if you want to see GPU connecting to the network: run another Gnutella client that connects to the network. then copy the file where the client has an updated list of hosts in the directory where GPU lies and rename it 'gnutella.txt'. after a while GPU v0.6 will connect to the network.
sorry for the inconvenients, we are at development stage