http://www.friendsofed.com/fmc/downloads/
I suggest that every Flash Developer out there get the book, Flash Math Creativity. These are just the source files (one set for the first book in Flash 5 and another for the second book in Flash MX 2004) for this magnificent book. If you are a developer, or just like messing around with Flash and AS, get this book. It will advance your understanding of ActionScript greatly.
Edit: Here is the Flash site for the book where you can preview all the source files: http://www.friendsofed.com/fmc/FMCv2/FMC.html
