Edit .gif animation using Photoshop (CS3)

Go File -> Import -> Video Frames to Layers…

The won’t be gif file type selectable, type *.* enter, all file will appear.

Choose the .gif file need to edit, select From Beginning To End as default, OK.

Go Window -> Animation if the Animation panel is not already open.

Now you should see the time frame for the animation, it might not be the exact same layers structure as the origin Photoshop or Firework file, but at least this provide you with basic material to edit with.

Note: When trying to edit frame that will appear through out the animation, you will need to edit the first frame, other wise you have to reposition every new layer in each frame.

Upon finishing, save by using Save by Web & Devices.