How can i put pictures on a bebo skin without them losing their animation?

If i put a gif. image on a background to put it on a bebo skin, it stops moving, so how can i put it in a skin, without it losing its animation???

How can i put pictures on a bebo skin without them losing their animation?
save the background as a .gif file. if the background isn't a .gif file.. it won't be animated.

palm