Not bad for a first attempt
Pretty good for a first flash, a lot better than most of the rubbish that people submit. It would have been nice to use a few extra characters rather than just Phoenix and Edward (is that his name? been a while since I played the game).
About your sound problem, if you go to properties for the sound and choose "stream" in the sync option it should match the sound to the flash exactly. Hope that helps.
Good luck with your next flash.