Привет!
вариант1:

Код:
_root.createTextField("news_txt", 0, 0, 0, 300, 400);
news_txt.html = true;
news_txt.wordWrap = true;
news_txt.multiline = true;
///
this.news_url = _root.news_url.length ? _root.news_url : 'mult.txt';
this.news_xml = new XML();
this.news_xml.onData = function(news_string) {
_root.onNewsLoaded(news_string);
};
this.news_xml.load(this.news_url);
delete this.news_xml;
delete this.news_url;
_root.onNewsLoaded = function(news_string) {
_root.news_txt.htmlText = news_string;
};
Вариант2:

Код:
this.createTextField("tData", this.getNextHighestDepth(), 20, 20, 500, 538);
tData.multiline = true;
var tfFormatter = new TextFormat();
tfFormatter.font = "Arial";
tfFormatter.size = 45;
tData.setTextFormat(tfFormatter);
var lvData = new LoadVars();
lvData.onData = function(sData) {
tData.text = sData;
};
lvData.load("mult.txt")