Score Counting Help

Currently, I am making a game called PSPrison Break. It is a Flash Game for the PSP system, and is about you shooting down prisoners that are tring to escape. I have read the “Game: Keeping Score” tutorial, but that tutorial states how to keep score when the two symbols (the +score and -score ones) are buttons. I need help on the code that will do the same function as those codes do, but they have to be for a MovieClip, not a button. I tryed it myself, but it has not worked. I am a complete flash nOOb. Please help.