ActionScript 2.0 :: Adding Elapsed Time To TextField Using Video Player?

I've been trying for hours to add the elapsed time to a dynamic text field using a video player.
The Flash website has code similar to this:
Select all//Get playhead time
var listenerObject:Object = new Object();
listenerObject.playheadUpdate = function(eventObject:Object):Void {
trace(ns.state + ": playhead time is: " + eventObject.playheadTime);
controls.elapsed = Math.round(eventObject.playheadTime);
};
ns.addEventListener("playheadUpdate", listenerObject);

But that was designed for an FLVPlayback component and therefore does not work.