The GIF format is limited to 256 colors. That's not enough to make a photo look good. In addition to the color problem, using photos in a GIF animation results in a huge file size. No matter which software you use to create your GIF animation, you will run into the same limitations. There is such a thing as amimated PNGs, but they cannot be made in Fireworks or Photoshop. I don't believe that animated PNG files will display properly in Internet Explorer.