Simple question

Can you tween a frame-by-frame animation? Basically, I just want everything in the animation to gradually move across the stage.

Yes, place your frame by frame animation in a movieclip of its own and then tween the entire movieclip.

Thanks! Can you also tween the whole animation so that it also gets gradually bigger?

Yes, as long as the animation is in a movieclip of its own, you can scale it or move it however you like.