To animate with adobe fire works, all you need is to:
1. Get a collection of pictutes you want to animate.
2. Frames: Put the pictures into different frames. The first pictures automatically goes into the first frame.
How to add a frame: simply go to the side bar where frames and assets is written, click on the + button, a new frame is automatically added.
3. Time Interval between frames: To modify the time intervals between frames, simply right click on the frame you want to modify, then click properties then a box containing something like (7\100) appears. 100 stands for one second, 200 for 2 seconds. So, modify the timing for all the frames as you wish.
4. Saving your animation: Make sure you save your animation with .gif. Or simply click on the animated gif button when asked for the file type.