To be fair , one of the main reasons that he cited for signing for Everon was his desire to play in his desired position ( central - didn't actually say no10 on the interview ) which clearly infers that he wasn't being played there for Arsenal.
I may not have watched the entireity of every Arsenal game but we have a little TV programme over here called Match of the Day which shows the highlights of every team every week and my eyes tell me that pretty much every time he played for Arsenal he played wide.