opss...
il codice giusto è questo:

for (var i = 0; i<this.headlinesTotal; i++) {
arrHeadLines[i] = {news:this["news"+i], img:this["img"+i], link:this["link"+i]};
var h = Math.round(27*i);
var _mc = this.controller.attachMovie("HeadLineItemSymbol", "item"+i, i);
_mc._y = h;
_mc.headline_button.onRelease = function() {
getURL(arrHeadLines[i].link);
};
_mc.initTotal = _mc.imageHolder_mc.getBytesTotal();
_mc.headline_field.embedFonts = false;
_mc.headline_field.html = true;
_mc.headline_field.htmlText = arrHeadLines[i].news;
_mc.imageHolder_mc.loadMovie(arrHeadlines[i].img);
_mc.imgLoaderID = setInterval(this.controller, "preloadImg", 250, _mc);
}