The send() method is useful if you want the server response to:
Replace the SWF content (use “_self” as the target parameter);
Appear in a new window (use “_blank” as the target parameter);
Appear in the parent or top-level frame (use “_parent” or “_top” as the target parameter);
Appear in a named frame (use the frame’s name as a string for the target parameter).
A successful send() method call will always open a new browser window or replace content in an existing window or frame.
Scene 1: Frame 1 Label: start
[AS]sender = new LoadVars();
sender.send(“http://www.google.com/”, “start”);[/AS]
Still opens in a new browser window. Why won’t it load in the frame specified? 
