Uh, it is VERY confusing.

So if I add

nail_mc.addEventListener(MouseEvent.MOUSE_DOWN, objectFound);

to the 2nd as frame, it should work correct? Since once the player goes to frame 2, the hammer will load and Flash will know what it is in sequential frames?

I actually looked at "Essential ActionScript 3" but amazon.com reviews mention its probably not the best for newbs... so I passed.