[CS3] Help

I got a stick man and I can make him move left and right using the arrow keys (in actionscript), which is what I want. Thing is, his legs and arms don't move when he does so he kind just magically moves. I've created a walking motion for him, which is now a symbol (movie clip). What I want do to is play the clip when he moves right (when I press the right key), and stop the clip when I let go, changing it back to the original still picture of him. Just basic movement, I guess.

If someone can tell me how to do this, it would be very much appreciated. And remember I'm still a complete noob at this. Also, I can post the file if you want to take a look at it.