Quick 2 line AS check

I’m trying to load an image found in a xml file into a movieclip but am not having much luck… I get this error (I changed the path to shorten):

Error opening URL ‘file:///Cpathonmycomputer/myflashproject/undefined’

the code I’m using looks like:

var _imgme =_xml.firstChild.childNodes[_currSong].childNodes[3].firstChild.nodeValue;
imgholder.loadMovie(_imgme[_currSong], 1);

imgholder is the MC on the stage, _currSong is the current xml child being read. Is there something obvious I’m missing here? thanks in advance