I need a loading progress bar

Hello everyone,
I really need a progress bar to load the external jpgs. I have them loading into an empty movie clip. Maybe I should have used a component? Anyway, can anyone tell me how I can get a progress bar to load as the photos are loading into the movie clip shell? Below is the AS2.
Thanks

on (rollOver) {
	this.small1.small1A.glowMC.gotoAndPlay("playglow");
	this.small1.small1A.yellowbox.gotoAndPlay("startyellow");
	this.small1.gotoAndPlay("startdown");
}
on (rollOut) {
	this.small1.small1A.glowMC.gotoAndPlay("endglow");
	this.small1.small1A.yellowbox.gotoAndPlay("endyellow");
	this.small1.gotoAndPlay("startup");
	this.small1.smallA.yellowbox.gotoAndPlay("boxsmall");


}
on (press) {
	this.small1.small1A.yellowbox.gotoAndStop("pushyellow");





}
on (release) {
	this.small1.small1A.yellowbox.gotoAndPlay("pushyellow");
	//this.fadeIn_mc.gotoAndPlay("startFade");



	var mcHolder:MovieClip = createEmptyMovieClip("mcHolder", getNextHighestDepth());
	var mcLoader:MovieClipLoader = new MovieClipLoader();
	mcLoader.addListener(this);

	(mcLoader.loadClip("photo1.jpg",mcHolder));

}	

//(mcLoader.loadClip("../images/photo1.jpg", mcHolder));