sybok

I have three gifs that I use as the logo for my store. I'm migrating the store from an old fashioned html site to Zencart. Problem is that Zencart will only allow one image for the logo. Using paint.net, how do I unite these three into one image? Also, the outer two images are animated and of course I want to keep them that way. Suggestions? You can view the logo at http://avalonrisen.com