Well then, this is my... First post on the forums.. Well, this isn't ACTUALLY the forums right?..
Gah, anyway.
For those of you who are having file size problems, it's because of how Flash saves the files. If you do the quick ctrl-S or just click Save, then it'll just build on top of your file size.
So what you have to do is Save As. Not as fast, but it'll lower your file size.
Oh! I think you have to save it as a different name too. But no worries, you can change it back once you've saved it..
Just wanted to help.