Preloader problems

Hello new to the site and pretty new to flash and scripting. I am trying to get a preloader for my website to work. The preloader works perfectly fine on the simulation on my computer but when i upload it online its blank and then my image gallery loads. Im sure it is something simple that I am messing. Please help and let me know what I need to post to further help me.

Here is my script for the preloader. Got this from a tut online.

stop();

addEventListener(Event.ENTER_FRAME, loaderF);
function loaderF(e:Event) :void{
var toLoad:Number = loaderInfo.bytesTotal;
var loaded:Number = loaderInfo.bytesLoaded;
var total:Number = loaded/toLoad;
if(loaded == toLoad) {
removeEventListener(Event.ENTER_FRAME, loaderF);
gotoAndStop(2);
} else {
preloader_mc.preloaderFill_mc.scaleX = total;
preloader_mc.percent_txt.text = Math.floor(total*100) + “%”;
}
}