Preloader problems

I have a Flash detection .html page that points to a preloader for the main .swf. Everything seems to be working except that when the main .swf opens it’s frozen - none of the buttons work! The main .swf works perfectly when opened directly. I’m attaching a .zip of the preloader I’m using.

Anybody have any ideas as to how to fix things?

Thanks,

Sue

P.S. You can see it not work at [URL=http://www.tbc.net/~elfstone/index.html]