hi all, i've got trouble tryin to get gnutella network connected

i've used shareaza and trustyfiles [great app btw, check it out ya'll] but i can't get neither of them to connect to gnutella. they do work but they only connect to edonkey and overnet n stuff. i've opened all the ports both from the router n the winxp firewall but nothin!

i need 2 know: do i have to open some specific ports? what should i do?