Every IT guy needs to create Tutorials and Presentations, so If you use Macromedia Captivate maybe you should try another free software is called Wink.
The website is: http://www.debugmode.com/wink/
Below more info about it:
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.