CSS isn't changing XML File

Question

I'm working on the example attached trying to get my css to alter the colour of my xml links. Despite doing what the forums say you should it's not working. What am I doing wrong? Thanks
<?xml version="1.0" encoding="ISO-8859-1"?>
<?xml-stylesheet type="text/css" href="style.css"?>

Answer 1

I assume I put this code at the bottom of my current AS?
When I run the fla I get the following message:
Error opening URL "file:///C|/Documents%20and%20Settings/Jen/Desktop/xml/undefined"
It still displays my xml info but there is no colour change. This is how my current AS is looking:- Thanks
function loadXML(loaded) {
if (loaded) {
_root.inventor = this.firstChild.childNodes[0].childNodes[0].firstChild.nodeValue;
_root.comments = this.firstChild.childNodes[0].childNodes[1].firstChild.nodeValue;
name_txt.text = _root.inventor;
comment_txt.htmlText = _root.comments;
} else {
  trace("file not loaded!");
xmlData = new XML();
xmlData.ignoreWhite = true;
xmlData.onLoad = loadXML;
xmlData.load("inventors.xml");
var myCSS = new TextField.StyleSheet();
myCSS.load(style.css);
// define onLoad handler
myCSS.onLoad = function(success) {
    if (success) {
        name_txt.styleSheet = myCSS; // where myTextField_txt is your textfield's instance name
        // call a funciton to assign your text to myTextField_txt
    } else {
        name_txt.text = "CSS file failed to load!";