Hi all! Im trying to get my iphone activated through itunes. My phone is on the activation screen with a picture of the world on it,

and the screen says "Please insert in unlocked and valid sim to activate". I have put in two brand new AT&T sim cards and all im getting is "invalid sim",and i cant use itunes cause its giving me a message" itunes cannot open please insert a valid sim card to activate your iphone". can anybody help me through this. Im currently using firmware 1.1.1

also if i restore it I get error 1015???