So here's a kludge. It works!
var myxml = new XML(xmlclean);
var il:XMLList = myxml.channel.item;
for (var i:uint = 0; i<il.length(); i++) {
var myitem:String = myxml.channel.item[i];
var mymedia:String = new String();
if(myitem.search("<enclosure") != -1)
{
mymedia = [EMAIL PROTECTED];
}
else
{
mymedia = "no media";
}

