With the release of CS3 several migrations processes happened. Freehand users migrating to Illustrator, GoLive users migrating to Dreamweaver here’s another I would say “internal” migration - Flash 8 to Flash CS3
Its’s one of the most enhanced program in the new CS3 suite - first Flash version ever released by Adobe. In this version Adobe present kinda a new conception of the interface, similar to Photoshop, Illustrator, InDesign and even shares the same icons and keyboard shortcuts with them. Isn’t it so coool! Im not going to turn the article over the Flash integration with Illustrator in CS3, because the article will get enormously huge.
The point here is the differences between Flash 8 ( action script ) and Flash CS3 ( action script 3 ) and here is the article written by Jen deHaan ( Instructional Designer Adobe ) exactly on that subject.