I create Flash and HTML 5 banners using Flash library objects. With Flash CS6 there is a CreateJSTool kit you can install as a .mxp file. Got everything working great using createjs objects. TweenMax and Tweenlite are able to see them!!! I would watch this:
http://www.gotoandlearn.com/play.php?id=174
The new Flash CC has this stuff built in but I am having some issues with TweenMax recognizing my objects to animate but the browser recognizes them. But that should help you get started.