Kenny bellew script?

is his script for sounds compatible for flash 8? COz i’ve been using his script since flash 6 and never really hace problems, now that I started using flash 8, all of a sudden I am having trouble on the buttons.

firstSound=new Sound();
firstSound.attachSound(“firstSound01”);
firstSoundVolume=100;
firstSound.setVolume(firstSoundVolume);

secondSound=new Sound();
secondSound.attachSound(“secondSound01”);

thirdSound=new Sound();
thirdSound.attachSound(“thirdSound01”);

fourthSound=new Sound();
fourthSound.attachSound(“fourthSound01”);

_root.firstSound.start(0,999);

basically that’s my setup, and here’s what i put into my 1st button

on (press) {stopAllSounds (); _root.firstsound.start (0,999);}

before using flash 8, when i hit button 2, the music in button 1 would stop and stat playing music 2, now hwnever i press a button the music just stops.