I know about this! but im not so sure with flash with action script 1 or 2
I can load web pages with action script 3.0 but I cant if I use the code:
_parent or _blank
so i just leave them out and by default it loads the page in a new window.
im using navigateToURL and not getURL because getURL is no more in 3.0
here is an example:
var youTube:URLRequest = new URLRequest("http://youtube.com");
youtubebutton.addEventListener(MouseEvent.CLICK,youtube1);
function youtube1(event:MouseEvent):void{
navigateToURL(youTube);
}