How can I use a personal pic on my laptop as a gamer pic for my xbox 360???

I have it set up to where I can view my pictures on my laptop. But how do I use them as my game pic????How can I use a personal pic on my laptop as a gamer pic for my xbox 360???You can't. You can only use pics from your computer as a 1 picture theme for your dashboard. The gamerpics, you have to buy on the marketplace.

round table pizza menu