What is the best way to preload?

[PaulyP]

I want to create a preloader for my movie. My main movie has custom built ui components. When i create a preloader in a seperate scene all the symobols and ui components are loaded from the main movie (about 16K) before the preloader annimation plays. How do i create a preloader that only loads the files it needs to run (only a few k) before starting to preload the main movie? (is that clear???)

Also my main movie is divided in to three sections for different parts of the site so I want the preloader to load only frames 1 to 16. How do i calculate the bytes in the first 16 frames to use in the preloader??

Thanks for any help