wow that needs work
you made a lot of misstakes that were quit uh... stupid.
first: when some one scores the ball just spawns randomly in the direction of the one scored against, no problem with that, but it goes to wide sometimes it goes to the uper limit or the lower limit. never do that because if your at the upper limit and it goes down you can't make it.
second: the point is given to early you should wait untill it is out of the field because sometime you still can hit it but the ball is destroyed and the other gets a point.
third: what the *bleep* the ball gets stuck for a while in my bat.
these and many more are the errors you have made.
work harder and more and ask others for advice and above all KEEP PRACTISING.
action script is hard (I know Im still practicing it) and this is nice affort but not worthy to post yet.
good luck in the future.
btw: most flash games are made in a single frame (games like pong don't need more) unless it has differnt levels those are made with a frame for each level.