ActionScript 3.0 :: Cannot Get The Preloader Assets To Update With The Loader Data?

I'm building a simple flash webpage using as3 in order to get accustomed to it. I've got some code for a preloader which, the end result works fine,but I cannot get the preloader assets to update with the loader data.To put it simply, I cannot get the code to update my text field that would display the percent done text.It only shows at 100 when it should go 1, 2, 3, 4...etc.Also I cannot get the bar_mc (just a simple bar graphic) to scale along with the percent loaded.

Code:
function handleLoadProgress(e:ProgressEvent):void {
while (percentDone < 100) {
totalBytes = loaderInfo.bytesTotal;[code]....