Hit Tests responding to Movies in Buttons

Hi everyone!
I’m trying to make a little game in Flash 8 and I have two movie clips, one that moves left to right and another one inside a button. When the user clicks on the button or hovers over it, it plays a movie clip that is inside. I want the moving clip to ‘die’ when it reaches the hit area for the movie clip in the button but not when it hits the unclicked button.
So far, I can get the clip to ‘die’ when it hits the button itself, but not the clip.
So, can anyone help me? Thanks in Advance.

Sorry, if I accidently put this in the wrong forum, I hadn’t noticed the Games section and then I wouldn’t have known whether it would fall under commands in Flash 8 or games in general…