How to Create fades in Flash CS3
To do fading in flash, first drag an image onto your main window. Shrink it down so it fits on the window, then right click your image and hit copy frames, then come out to frame 15 and hit paste frames. Right click in the middle of the set of frames and hit "Create motion Tween" Go to the first frame and click on what you want to fade. Go to the color tab and then select alpha. If its not on 0, drag it down to 0. Now go to frame 15 and make sure its on 100. Now if you drag from left to right through the frames, you see that it fades rather smoothly.