The external preloader doesn't wait?

Question

Hello! I have a new dilemma concerning external preloaders.
Now I found out that sometimes external preloaders don't wait to load the entire swf file before this last one runs.
I read a few tutorials, specifically this: http://sierakowski.eu/list-of-tips/45--two-ways-of-preloading-in-actionscript-3.html.
I understood the concept and I applied both explained methods, but still couldn't find a solution: the swf file runs before the preloader finishes to load.
Can anybody help me?
This is my code (useless) so far:
import flash.display.MovieClip;
var myLoadedMovieClip:MovieClip;
var contentLoader:Loader;
loadContent("Index11.swf");
function loadContent(url:String):void
    contentLoader = new Loader();
    contentLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loading);
    contentLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, contentLoaded);
    contentLoader.load(new URLRequest(url));
function contentLoaded(evt:Event):void
    myLoadedMovieClip = MovieClip(contentLoader.content);
    myLoadedMovieClip.play();
    removeChild(progressbar);
    addChild(myLoadedMovieClip);
function loading(evt:ProgressEvent):void
    var loaded:Number = evt.bytesLoaded / evt.bytesTotal;
    setBarProgress(loaded);
function setBarProgress(value:Number)
    progressbar.bar.scaleX = value;
    contentLoader.visible = true;

Answer 1

Thank you Kglad!
Thanks to your questions, I realised there wasn't a problem with the code you gave me at all.
It was MY problem. I got confused and I should be more systematic and organised with my files.
Now everything works fine.
I leave the code properly written, in case anyone needs to see it:
from the External preloader:
import flash.display.MovieClip;
var myLoadedMovieClip:MovieClip;
var contentLoader:Loader;
loadContent("Index11.swf");
function loadContent(url:String):void
    trace("start load");
    contentLoader = new Loader();
    contentLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loading);
    contentLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, contentLoaded);
    contentLoader.load(new URLRequest(url));
function contentLoaded(evt:Event):void
    trace("loaded");
    myLoadedMovieClip = MovieClip(contentLoader.content);
    myLoadedMovieClip.play();
    removeChild(progressbar);
    addChild(myLoadedMovieClip);
function loading(evt:ProgressEvent):void
    var loaded:Number = evt.bytesLoaded / evt.bytesTotal;
    setBarProgress(loaded);
function setBarProgress(value:Number)
    progressbar.bar.scaleX = value;
    contentLoader.visible = true;
And in the swf file:
first frame (with blank keyframes in the timelines):
stop();
trace("frame",1);
second frame:
trace("frame",2);
my url is: http://gabrielates.com/
Thanks again!