Also, if you have questions that need to be answered NOW. you could always try the IRC channel (IRC is a form of chat).
More info here:
http://dom3.servegame.com/wiki/IRC
And it would also be wise to register at the other forum.
http://z7.invisionfree.com/Dom3mods
That has a special topic for announcing to the world that you are a newbie and want to play in the next MP game. (I think Calahan started it, I'll do a frigging search).
Right, there it is:
http://z7.invisionfree.com/Dom3mods/...?showtopic=375 (Word of warning most of the games there are played with the CBM mod. Opinions differ if that is a good start for a newbie player or not).
Have fun.