I can't get my preloader to work

Hi everyone,
This is probably a completely n00b thing, but I’m trying to get a preloader to work on a gallery I made. I’d already made the gallery, and now as an after though have attempted to add the preloader. As a whole it seems to be working, except the preloader keeps coming back on itself, so I can’t actually every get round to seeing to gallery I’ve made. I think maybe there just needs to be some kind of “stop” action put into the ActionScript within the preloader scene, but to be fair, I really don’t know what I’m doing. I’ve followed a tutorial to the every detail, but still it doens’t work. If anyone can help, that’d be great. The orginal Flash file can be grabbed here: http://www.megaupload.com/?d=8GMWRU9Z