Load xml file and cross domain

Hi, good year…

I have some problems with security file e load xml.

I have u file xml on

http://www.centrocartucce.it/slideshow.xml

but the file swf is on

http://www.actiondesign.it/slide.html

in local inside IDE of flash is ok but online don’t work

this is as:

System.security.allowDomain(“http://www.centrocartucce.it”);
//System.security.loadPolicyFile(“http://www.centrocartucce.it/slideshow.xml”)
var myXML:XML= new XML();
myXML.ignoreWhite= true;
myXML.onLoad= function(ok){
if(ok){
trace(this);
debug_txt.text= this;
}else{
debug_txt.text= “non caricato”;
}
}

myXML.load(“http://www.centrocartucce.it/slideshow.xml”);

i have create a file crossdomain.xml and put it in www.actiondesign.it/crossdomain.xml

but it don’t work

help me please.

thanks