Volume fader help please

Hello,
I just wanted to know, I am using the Fader that came with the Flash Library…and I have inserted into my movie and I have play and stop buttons for my mp3 already so that when they site loads…if you want to hear the music you push play…now I just want to add the fader but I dont know how to link the two together…i opened the actionscript up for the fader but I dont know what to type or if I have to connect the two in the play and stop buttons? any help please…if you want to look at the script for the fader it is in the button libraries in Flash…thanks a bunch…
Danny