Here is a heads up on another easy contest (link still broken) from MS. You need to download the Cause Chaos gamerpic and theme, which are free. Once you do so, you will be entered into the contest that runs from September 25-28.  Right around the time Halo 3 was released last year…hmm. Its a GTA 4 theme so its not like you are getting Axe body spray ads plastered across your dash.