Drawing outline animation

I came across someones post for Flash MX doing this effect, where they used an outline of a car as a motion guide and produced the effect of actually drawing the car in the animation. They used actionscript to do it rather than using keyframe animation. The actionscript wasn’t that long either.

I wanted to know how to do this in Flash CS3 but for a logo. I’m relatively a newbie to advanced flash stuff.

Any help?