SWF showing up as white space when page loads


I have a site I'm working on and I'm trying to include an swf as part of the site design like this site does:


If you notice this page when it loads, it loads the swf immediately w/out showing a white block before the swf loads.

My attempt, on the other hand, shows a white block before the swf loads:


Any ideas on what I can do to make my site more like the bonnaroo’s?

Thanks for your help,
Clem C