(help) Preload .swf Behind The Scenes

I’m working on a project that starts with an opening .swf. When the user clicks a “go to the next page” button, there’s a nasty 5+ second delay of white nothingness, even before the preloader for that .swf shows up – and even then, the preloader is starting at about 50% (I suppose it would be worse if it started any lower:)

I’d LOVE to get rid of that giant white elephant if at all possible. I’m wondering (and I have looked seemingly all over for tutorials and/or forum threads) how I would have the initial opening .swf load, but immediately following, behind the proverbial curtain, preload the next .swf and have it be ready to rock once the user clicks the appropriate button.

Any help would be wildly appreciated! Thanks.