I don't think other Gnutella program block out Qtella! But i know Qtella has some connection issue, or it is too old...If i don't remember it wrong it use some sort of Host file, and i do not know it is up to date so to speak! I can connect all the Gnutella program i use easy, but i was not sucessfull to make Qtella connect at all....
It would be great to have a working Host file for Qtella users, if some still use it! I only see on Gnutella network gtk Gnutella which is similar to Qtella!I think Qtella users have mostly moved on to gtk Gnutella for Linux/Unix OS these day's...