How do you load your own "gamer picture" on xbox live?

I want to change my picture on xbox live to a picture of me and not some random thing.....how do i do it?How do you load your own "gamer picture" on xbox live?An Xbox Vision Camera can take photos of yourself. However the photo will be a "personal picture" that only you and your friends can see.How do you load your own "gamer picture" on xbox live?The only allowed way is to use a vision camera. There is another way with an unauthorized program, but it's considered modding and you can get banned for doing it.How do you load your own "gamer picture" on xbox live?i know you can change your background by uploading a pic off of a flash drive or something like that. im not sure about your gamer pic though =P