Manila Home Page Animated Weather Question

[kaos]

Ok On manila 2.1 on the home screen you have animated weather on the clock as well as it scolls across home page.
Looks like this


Now if you change background with the background for all cabs floating around. they still allow animation by clock. But all animation on home screen stop.

just look like this

Anyone figure out how to change background without loosing the whole animation process?
or anyone know the location of png for manila....maybe go about it that way to keep full animation?