(Urgent!) Loading Text from txt file

Hi, I have an urgent problem to solve for a client. Any help would be GREATLY appreciated…

We are dynamically importing text from a .txt file, but it is only displaying on Flash player 9. I have used this code in earlier players without problem. Can anyone identify why this is not working on player versions prior to v9? The text layer is not in a mask, and sits at the top of the layer levels. 9Works well in v 9 players)


function GetAndDisplayAdText() {

var loadAdText:LoadVars = new LoadVars();
loadAdText.onLoad = function(success) {
if (success) {
adTextMC.adText.htmlText = loadAdText.vText;
myLink = loadAdText.vLink;
link_btn.onRelease = function() {
getURL(myLink, “_parent”);
} else {
_root.adTextMC.adText.htmlText = “”;