XML Load Problem

I am making a flash website and trying to load and display an XML file, but nothing comes up. I’m not an expert at actionscript but I can usually figure my way through it, but it seems like I’ve met my match here. I want to take the data of an XML file and display it on a page of my site, but nothing’s showing up. Here’s the code I’m using:

wmXML = new XML();
wmXML.ignoreWhite = true;

function extractData(success){

Here’s the beginning of the XML file:

<?xml version=“1.0” encoding=“UTF-8” ?>
<filename>Ballroom class final - Salsa.mp4</filename>
<filename>Ballroom class final - swing.mp4</filename>
<filename>Clark Cruise '07.mov</filename>
<filename>Freshmen Retreat (web).mov</filename>
<filename>Gospel Choir in Chapel 10-24-07.MPG</filename>

Can you help tell me what I’m doing wrong?? Thanks a million,