I've never ever used flash before so I'm clueless as to how to use it. What I'm trying to do is have a button that makes other buttons appear on the screen when you click it (a bit like a drop-down menu). How do I do this?
All help would be greatly appreciated.

Give me a hour or so and I'll make a tutorial for that :)

Perhaps this will help..
http://www.thecodebehind.com/code/flash/actionscript/drop-down-menus-in-flash.aspx

Another site loaded with information on Flash
http://www.pixel2life.com/tutorials/Macromedia_Flash/All/