How do you change your theme on xbox 360?

just purchased a theme and picture on my x box 360 how do i get to them to use them?How do you change your theme on xbox 360?
or you can go to myy xbox then where your avatar is click there much faster hope this helpsHow do you change your theme on xbox 360?
Gamer pic- guide%26gt;go to the right once%26gt;edit profile%26gt; change gamer pic%26gt; find gamer pic.



Theme- guide%26gt;go to the far right%26gt; go to console%26gt; then to display%26gt; then to themes%26gt; then click it.