Graphics don't make a game, at least, I don't think so. Try to learn the walking animation a bit. It's not that hard. When your character moves, just "play" his MovieClip (just like you probably move it with this.x (this_x), say this.gotoAndPlay() etc. Same with the jump thingy. Your character will be like this:
frame 1: stop (stand still 'animation')
frame 2-10: walk animation, frame 10 has a "gotoAndPlay(2)
frame 11-x: jump animation, easiest is to make this as long as you're in the air
In your code, with the key-down handelers (to move your character), you can handle which frame your character has to play.
Google is your friend, try some terms.
<a href="http://flashgameu.com/">http://flashgameu.com/</a> is a nice site with a nice book for (simple) games, you should try that.
Zoogle1000
I hope it's as good as your other game!
UGotFlashed
Thanks man, I noticed you put as one of your favorite artists :)