Flash Jet Fighter game - work in progress

I'm working on a simple game in Flash at the moment. It consists of a user controlled jet which fires bullets at enemy jets that appear randomly. If the user is hit by an enemy X number of times the game is over. 10 points for every enemy destroyed! I haven't got the scoring working properly yet. I must also figure out how to get the enemies to shoot.

Flash is actually a much nicer drawing tool than I have been giving it credit for all these years: