How to access VideoPlayer.load() method that accepts 5 parameters?

Please see my SO question here for details: http://stackoverflow.com/questions/17776642/flvplayback-videoplayer-how-to-access-videoplayer-load-method-that-accepts-5

Basically, in CS4 (or CS6), I want to call the five-argument version of VideoPlayer.load() that is documented here: 

    http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/fl/video/VideoPlayer.html#load()    

But I keep getting errors along the lines of  "incorrect number of arguments."

Steps to reproduce:

• Start a new, blank FLA document (AS3).
• Drag an FLVPlayback component to the stage and name it vPlayer.
• Create a new layer and add Actionscript in frame 1:

  import fl.video.*;  
  var innerPlayer = vPlayer.getVideoPlayer(vPlayer.activeVideoPlayerIndex); 
  trace(innerPlayer); // "[object VideoPlayer]" appears in Output window  
  
  innerPlayer.load( "RTMP://..." , 
  0 // totalTime , 
  false // isLive , 
  60 // startTime , 
  10 // duration );

This should give me a ten-second clip starting from the one-minute mark, but I keep getting errors like

ArgumentError: Error #1063: Argument count mismatch on fl.video::VideoPlayer/load(). Expected 1, got 5.