Why won't my movie load???

Here's the layout....

Frames.
leftFrame has button.
button opens 'apple_test.swf' in mainFrame.
'apple_test.swf' is a movie that looks to see if Flash 6 is installed.
the first part of the script is the standard establishment of the variable 'majorVersion'....
my if statement is as follows...

if (majorVersion == "6") {
this.loadMovie("apple.swf");
} else{
gotoAndPlay("download");
}

it will not load "apple.swf"
if I push the button repeatedly I can see the tag on the first frame of "apple_test.swf"
but the movie will not load (nor does it go to the label 'download')

PLEASE HELP ME!!!
It has to work and I have dried up of ideas.

If you check out the URL it is on that first page, the button on the top (apple v. microsoft)

URL

Hey I took a look at it and it works fine for me. Let me know if youre still having issues or if you figured it out.