onRelease problem

The script successfully loaded the image but couldn’t make the image to become an active link with onRelease function. So I’m dropping the script here hoping somebody give me a hand on this problem…

promoXML = new XML();
promoXML.ignoreWhite = true;
promoXML.onLoad = function(success) {
	if (success) {
		xmlNODE = this.firstChild.childNodes;			
		imageURL01 = xmlNODE[0].attributes.imageURL;
		thumbURL01 = xmlNODE[0].attributes.thumbURL;
		promoURL01 = xmlNODE[0].attributes.linkURL;
		imageURL02 = xmlNODE[1].attributes.imageURL;
		promo01.loadMovie(imageURL01);
		thumb01.loadMovie(thumbURL01);
		promo02.loadMovie(imageURL02);
		this.promo01.onRelease = function() {
			getURL(promoURL01);
		}
		}
}
promoXML.load("promo.xml");