WoW Trial Question..

Hey guys, Im really Ill (caught a cold) and because of boredom I’ve decided to start WoW. I downloaded the trial version (where you can level up to lvl 20 only).
So i entered my Email Adress & Password and then made a character and started playing.
But what my question is : What server am I playing on? Because I didnt have the right to choose one. I want to play on the main server, because I cant see alot of players on this one.
Also one more question : How do I contact a Game Master (GM) in game?
Thx!
Answer #1
I tried WoW trial to….
Only what I know before you enter the game you can choose server – so search menus a little….
Answer #2
For some reaeson I couldn’t..
Answer #3
When you log in in character list click Change realm and choose which one do you want.