Excellent Idea and Thorough Work!
I truly appreciate the work that you have done here. Not only did you teach about how to use Flash, but you taught about proper etiquette and how to effectively review someone's flash movie.
I also liked the intermediate and advanced tutorials (scripting) that you had in your movie! Nicely done.
Oh yeah, in your movie you had said that if you reuse sound, then it does not affect the file size. This only works if it is an event (or "start") audio type. Again great job on this tutorial!