Well, it should be animated. This is the first animation I ever tried. It's a sequence of shots I took with the D70, which takes awesome sequence shots. I resized them to 640 x 480 and put this together in Photoshop Elements as a multi-layer GIF. - It moves only if you're looking at the "original" pic - small and medium don't move.

I saved it for the web, previewed it as a file in Internet Explorer 6, and it moved.

Does it move for you?