XMLList problem - doesn't return anything at all

Question

Hey guys,
I'm having a real problem here.
I was just trying to learn some AS3 (particularly - XML integration)
and got stuck on an absolutely basic thing which there shouldn't be
any problems with. Something that should work, doesn't ... and I have
no idea why ... maybe you could shed some light ...
so ... here's the code:
var urlReq:URLRequest = new URLRequest("galeria.xml");
var loader:URLLoader = new URLLoader(urlReq);
loader.addEventListener(Event.COMPLETE, onLoaded);
function onLoaded(event:Event):void
    var xml:XML = new XML(event.target.data);
    trace(xml);
    var lista:XMLList = xml.galeria.foto;
    trace(lista);
to best of my knowledge the last trace in the function
should return something, anything ... but it doesn't, just a blank line
and furthermore - the first trace two lines above returns the contents
of the XML file as is ... so - what's going on? I've seen tons of tutorials and stuff
and according to all of them - the above piece of code should work ... but it doesn't.
of course the xml file is in the same directory as the fla file. oh, and one more thing
- I'm using win7 and the latest version of Flash CS4 if that matters at all.
just for the sake of it - I'm attaching the xml file and the fla file as well.
please, help ...
Regards,
Martin

Answer 1

that should be:
var urlReq:URLRequest = new URLRequest("galeria.xml");
var loader:URLLoader = new URLLoader(urlReq);
loader.addEventListener(Event.COMPLETE, onLoaded);
function onLoaded(event:Event):void
    var xml:XML = new XML(event.target.data);
    trace(xml);
    var lista:XMLList = xml.foto;
    trace(lista);