Tutorial doesn't work

Hi,

I have been trying to do this tutorial and it doesn’t seem to work…

http://www.kirupa.com/developer/mx/dynamic_scroller.htm

When I run the .swf this error appears in the output


**Warning** Scene=Scene 1, layer=action, frame=3:Line 1: The identifier 'loadVars' will not resolve to built-in object 'LoadVars' at runtime.
	 loadText = new loadVars();
Total ActionScript Errors: 1   Reported Errors: 1

What am I doing wrong?