Interesting idea, but a bit slow?
I like the idea, though I didn't quite understand the fact you don't control the golf club straight away... but once I figured that out the game seemed sort of cool...
Though (and maybe it's just because I might have too many applications currently running); the physics engine seems oddly slow... There isn't that many objects on the screen with physical attributes in the first level, but I noticed a large slow down... may I ask what Actionscript version you're using? If it's AS3 it seems very slow... did you code the physics engine yourself? Do you (or have you considered) use frame limiting/checking? Maybe you're updating the collision checks or rigid physics too much to try and correct detection... I dunno... I just think you should look into it...
I just think if you fixed this problem it would make the game more accesible to more players... the actual idea and mechanics are pretty good and it has alot of potential.