External text returns undefined

ok - i have an external txt file

saved in the same folder as the swfs that i am loading the text into

one of them is working fine

and the other is not

working

 
loadText = new LoadVars();
loadText.load("impack.txt");
loadText.onLoad = function(success) {
	if (success) {
		welcome.text = this.welcome;
  welcome.html = true;
  welcome.htmlText = this.welcome;
  
	};
}; 

not working

 
loadText = new LoadVars();
loadText.load("impack.txt");
loadText.onLoad = function(success) {
	if (success) {
		aone.text = aone;
  aone.html = true;
  aone.htmlText = aone;
  };
  if (success) {
		atwo.text = _root.atwo;
  atwo.html = true;
  atwo.htmlText = _root.atwo;
  };
 if (success) {
		athree.text = _root.athree;
  athree.html = true;
  athree.htmlText = _root.athree;
  };
  if (success) {
		afour.text = _root.afour;
  afour.html = true;
  afour.htmlText = _root.afour;
  };
  if (success) {
		afive.text = _root.afive;
  afive.html = true;
  afive.htmlText = _root.afive;
  
	};
  
 
}; 


i’ve tried using _root. and -parent. but to no avail!