Tween help
To stop the breaking in the tweens (as you are using shape tweens) use shape hints. You can place hints either by hitting Shift+ctrl+h while on the first frame of a tween or select it from the Modify->Shape->Shape Hint.
Then go to the last frame of the tween and place the second parts of the hints. They are lettered so you can tell which ones correspond to which ones.
I would advise googling and finding out more that way (my explanation will be crappy without a video to show you what I mean), [if you want I can upload a shape hint vid, but I imagine tons already exist].
Also, this is an alpha and prolly should have been submitted there.
At any rate, if you put some effort into it, make use of shape hints (or animate Frame by frame) then this looks like it will be good.
Oh, one last thing. Your words flip by a bit on the quick side.
~Myzzy