Colouring book in flash

I am doing kiddies software, and what i want to do is have a colouring in page so that kids can have fun. The thing is that there are no such tutorials on here about this, a chap called senocular gave me an example, but i am thick so i didn’t quite understand it. Can anyone offer me help on how to do this,

here is the sort of thing that i want.

http://www.hitentertainment.com/bobthebuilder/uk/colourDizzy.html

Help is needed and would be appreciated.

Thanks