Banner Animation

Basquiat

Hi
I am quite new to the Expression Studio so excuse the basic question.

I often have to design ads for a web site. I can use Blend and Sign to
create nice images for my ads. But can I do some animation? I've watched the
Blend animation training video...but what about a very simple banner ad where
you have to images and you simply want to create a slide show of these 2
images. Or you want the 1st images to fade out and the 2nd to fade back in?

I've used software like 'Banner Maker' in the past...but I am hoping that I
can create more profssional looking ads with Blend (or Design).

Regards