Anyone have any idea why a movieclip loaded in a loadMovie action would cache under IE but not Firefox 1.0?

Take a look: http://www.pixelfusionmedia.com

The picture and/or content load every time you change pages even if you've been there.
Which unfortunately causes a problem with my image transition. Any help would be appreciated.

Thanks,
Craig

- Before you ask, yes, caching is enabled in my Firefox browser.