well when you run the prog you get the options window up.
in there you'll write name and mail, then nick
after that there's the connect button, next to it a icon. Press the icon and choose server:
QuakeNet
and irc server: QuakeNet: Random UK server
then press connect and you'll get in.
after that you need to get into the doriath channel, there's a load of them so you need to type in #gs_doriath for joining that channel.
you enter which channel to go to by entering the favorites window (usually comes up when you connect)
from there you'll have us to help you