I've been using the AWC program but says my registration is overdue or w/e. I was wondering if anyone knew any other way to switch wallpapers automatically.
ty

If you're running windows 7, under personalize>wallpaper you can choose multiple and it will cycle through them.
If not win7, i guess you can check these out:

http://jamesgart.com/wallpaperchanger/

or

http://www.caledos.com/lab/Caledos/Caledos.aspx