Seen demodemo.com?
You can do basically the same at no cost with Wink
See:
http://www.debugmode.com/wink/
From their website:
Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel etc). Using Wink you can capture screenshots, add explanations boxes, buttons, titles etc and generate a highly effective tutorial for your users.
Here is a sample Flash tutorial created by Wink.
Very interesting and easy to work with.
Highly recommend.