CS4: How do you create a flash presentation?

[JakeWindu]

For a school project we have to make a presentation about our RME topic, and we can to it in any format we want.
I want to do it in Flash so as to add interactivity.
Problem is, I am not certain on parts of it.

QUESTIONS
-How do you add buttons, so as to change the background?
For example, it shows title screen. Then you click. Then it shows first slide like. Then you can click like, Introduction, The Pillars of Islam, ect.

Thats pretty much it...
So how do I do it?