In all honesty...
This, needs alot of work. In the intro sequence, some of the text went by a little too fast, the plot seems not bad though, maybe just work on it a little more.
The graphics aren't too good, the animation needs to be alot smoother. Things need to move a little more, try and make the fight go somehwere and not stay in this little spot. Some sound effects would be nice too. Since i can't give links here i'll pm you with some places for you to find sound fx.
You have alot of work to do in order to do this flash justice. Just don't give up and try again. Practice makes perfect.
Thanks for using my music in your animation, it is greatly appreciated.