Complex Button RollOver/RollOut Effects Problem

http://www.kirupa.com/developer/mx2004/button_effect.htm

this tutorial is very helpful, but i am having trouble with linking the button to my movie clip container.
In the tutorial the code is this:

[COLOR=#0000d0]this[/COLOR].[COLOR=#0000d0]onRelease[/COLOR] [COLOR=#0000ff]=[/COLOR] [COLOR=#006610]function[/COLOR]COLOR=#0000ff{[/COLOR]
[COLOR=#0000d0]getURL[/COLOR]COLOR=#0000ff[/COLOR]; [COLOR=#0000ff]}[/COLOR]

But i want the button onRelease to load a swf into my mc_container, but when i click the button it doesn’t load my movies. does anyone know the code i need for this button to load external swf’s into my conatiner, through this complex button?