A hint of advice...
Firstly, please go and look up "Ease" tweening. Basically, it's simple & makes your tweens look a LOT more realistic. Secondly, make everything move faster-- your fights scenes need some help in the speed department.
And thirdly, instead of making one guy move, then the other, try to have them move around each other, and attack constantly-- attack, block, dodge, attack, as opposed to long stretches of pacing(or worse talking :P)
So nice flash movie, but get 'er up to snuff in the fight department :)