There are several threads on what to do if you're a new player to DND. Really the only thing you can do is read the players handbook and Dungeon masters guide left to right, then whoever understands the rules the best should probably be DM.
Also,
The Hypertext d20 SRD (v3.5 d20 System Reference Document) :: d20srd.org
And as this is a common subject and easily searchable, I'm closing this thread.