I'm trying to put my aunts 2g sim card, which is actually a 3g sim card because she lost her 3g and went back to 2g, anyways im giving her my old 3g because im on 3gs and when i put it into itunes it says this

Screen shot 2010-06-01 at 7.58.23 PM.jpg

I'm using an att card, i dont want it unlocked, also the card works fine in her 2g iphone, and i also put another persons 3g sim card into the 3g iphone im giving her and same thing

I've restored it through itunes, still no go, any ideas?