I am using one of the included Slide Presentation templates in Flash MX 2004. I am using a number of images at 640 x 480 so this will be a relatively large SWF. Can I add a preloader to these slide presentation templates?

I am paranoid about building and adding a preloader since I tried at one time and I dont understand them, but shouldn't I use a preloader so all of the images can load, then the user can click through the images using the forward arrows.

Is it possible to add a preloader to this slide show.