I'm trying to make a litte website using flash, mostly just for fun don't even know what it will be about

Anyway one of the things I couldn't figure out was how to make the content easily updateable.
I used to make some sites with
HTML and then I could very easily just open the
HTML document in any writting program and change it, but with flash that isn't very easy. But then I heard you could use an external
XML sheet which contained all the text, and make the flash document load this into the flash document. How do I do this? I'm not asking how to make the
XML sheet, I guess this isn't really the place. But how do I do the flash part?
(If you do know how to make the
XML sheet aswell you're free to post it ofcourse)