Movieclip Issue

hi ppl,

I am hoping someone might be able to help me? I am really having some trouble with a movie clip in flash.

The idea is bubbles which are animation with a simple motion tween to loop up the page. Inside the movieclip is a button, which I wanted to add the effect of moving bubbles up the page and with a button state burst the bubble with a sound sample to play. However this doesnt work right because the movieclip is moving at the same time we want to click on it. Can anyone help me I am so stuck.