i pod wizard help!!!

Hi i have a 5th generation ipod 30 g. i downloaded i pod wizard the other day and a couple of themes for the 5th ggeneration ipod. the screenshoot for the theme showed it having a picture alomost as a wallpaper. however when i put the theme on the ipod through ipod wizard the background is the same white color and it dosent have the picture that came with the themes but the icons for the themes are there on the ipod. Not sure what to do to have the picture as my background my ipod version is 1 2 1. Thanks