Creating An Auto Rotation Tween I

How to create an automatic rotation tween:

In the main timeline insert a keyframe at at frame 24.
Using the "Free Transform" tool drag the cursor to rotate the object.
Go to the main timeline, right click between frames 1 and 24 and select "Create Motion Tween".
In the properties panel make sure "Rotate" is set to "Auto".
Then in the main menu go to Control > Play to play your animation.

Note: Make sure the bitmap has been converted to a graphic or movie clip symbol before trying to create a tween.