You should have made a bigger "hit" for ur button and actually mention how to do it in your tutorial. And also u should have put a stopallsounds(); before playing the new tracks.

fiddling with teese buttons without it is ultra annoying and it is not difficult to use. These little hints are the aim of tutorials. Teach yourself to use a preloader. And only teach, if you are a real master, or do you think the dummies book series are written by dummies.
But I think this review is senseles, since you are so selfconceited

You are teaching things that are in the flash tutorials for heaven's sake, only teaching it in a much more confusing way.

And here is a BIG tip: properly construct your buttons if you are going to make a tutorial about how to make them. (it looks like you don't know what the "hit" frame is for)

I think this is excellent, as it provides an introduction for people who want to make something. It's always nice to have an idea of what to do before you do it; I think that would cut down on the number of crappy flash stuff if people knew what to do. BTW I like the techno remix of the invincible star tune!

Yeah, GREAT IDEA to make the buttons letter sensitive instead of making their hit-area larger..