Jivelite Wallpaper

I've just built up a Jivelite box in a 1958 Crosley Radio box (not 100% done). Jivelite works perfect, Touch screen works perfect. All is well except I can't figure out how to add wallpaper to the Joggler screen. The smallest skin has wallpaper which show up in halves on Joggler. I found the wallpaper folder and changed one to 800x480 and rebooted and it doesn't seem to affect it at all.

So the question is, how do I get a wallpaper in the 800x480 Joggler environment?

Thanks. The Jivelite project is very cool

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