You actually can. go to my xbox click on your gametrag and click change theme,should come with a few free themes.
Chat with our AI personalities
Points vary on what theme you are wanting. Maybe 80-300 points.
You are not able too.
you go in to the store and search it and its free !!!
You don't all you have to do is get a xbox 360 a (white) one the take your original xbox games and play them on your xbox 360 be sure 2 get a xbox 360 elite or it probably wont work.
you can't change your age on xbox 360 but you can make one more account and put it over 18 and then add gold