Centered pop up working on only some computers

I created a site with centered pop up windows, using this tutorial for my code: http://www.kirupa.com/developer/mx/centered_popup.htm

It works great on my mac and the site has gotten feedback from friends all over the world. but about 12 people have emailed me to say that the links are not working at all. One of them said he was using IE7 (latest version) and on a PC. The others said nothing about specifics.

this is the first time i have used links within flash. I have each ilnk as a button with this coding in the actions:

on (release) {
//customize the window that gets opened
// 0 equals NO.
// 1 equals YES.
address = “http://www.Godspeedthewelldressedman.com/Fall07/Fall07.htm”;
target_winName = “Godspeed the Well-Dressed Man Fall 07”;
width = 665;
height = 810;
toolbar = 0;
location = 0;
directories = 0;
status = 0;
menubar = 0;
scrollbars = 1;
resizable = 1;
//sends data back to the function
openWinCentre(address, target_winName, width, height, toolbar, location, directories, status, menubar, scrollbars, resizable);
}

I’m new to web design so i’m not sure how to approach this problem other than ask you guys for help. thanks in advance.