Music bar question - loadmovie()

I used your tutorial on music bars, but I have a problem with the swf with the stop button loading up where the play button was instead of replacing the entire movie.

So I end up with the play swf and the stop swf loaded up really small inside of the space where the actual button was.

Do I need to change this?
on (release) {
loadMovie(“musicbar_stop.swf”, this);