Send Variables To Popup

Hi,
I have used the Kirupa tutorial below to create a centered popup, which works great.

**[URL=“http://www.kirupa.com/developer/flash8/centered_popup_window.htm”]http://www.kirupa.com/developer/flash8/centered_popup_window.htm**

However,
If I try to send variables via GET or POST to the popup with this tutorial, the link no longer works.

Basically what I need to do is to be able to is send a value via POST or GET to a popup window from a variable contained in a flash button embeded in another page.

Any help would be well appreciated.
Thanks,
Mat.