You didn't pay for it now, though did you and the frames go way above 99. To draw inside a symbol? Just dupulicate it, break it, or trace....
Well I assume my workplace did, so no, I didn't pay for it personally. I know the frames go above 99, but for example if you have a symbol set to play once, and it's on like frame 142 and you look down at that bar along the bottom it only says 42. You have to click in there and move around to see the whole number.
It's a pretty good program for web-related stuff, but for television animation it's not so great. And that's where most of my experience lies. (Though maybe you've seen Skunk Fu, out of ireland, which is pretty darn good). Though since your in the UK, I believe, your exposure to flash-animated TV series is probably pretty negligible since it's mostly NA that thinks it's a good idea.