Photo Gallery with XML and Flash Tweak

I just read the tutorial on using a photo Gallery with XML and Flash and I was wondering if anyone could help me tweak it a bit?

I would like to have the images load for a few seconds and then automaticly unload the present image and load the next image in the xml file. Principally, I would like to have the Gallery automaticly shuffle through the images like a slide show without having to take user imput from clicking a button or hitting a key on the keyboard.

Thanks!