Game - Character Movement Help

Hi Guys im having problems with the movement with my character, I managed to move my character from left to right, the only problem is when i move my character right / left i make the character inner timeline to go and play a walk frames so it gives an illusion that my character is walking, i got that done even when i press the right /left buttons, but im having a problem when the key is released how do i make my character come to a stand still position.

Note: this game is for a mobile and im using Flash Lite 1.1,

Please help

Regards

Peter

You mentioned that you have a go and play within the character to make him 'walk', can you not have a go and stop in the same timeline where he ceases to move?