Actionscript help! external loading, photo, slideshows, and more...!

[size=3][font=Times New Roman]Alright guys, I know there is a way to load things in a movie in separate times, like if I wanted to load different pieces at different times and so on, so I was wondering how I would accomplish that. Ok, so what I want to do is make a sort of slideshow piece like on many corporate websites have, like a photos section. so I want the first image to load then have a next button and once you press this button it will go to the next page and load with a loading bar the next image and show it, and so on and so forth. I know basic actionscript for a reference but for the hard stuff can you guys please supply some help! Anything is greatly appreciated, Thanks so much in advance to everyone who tries to help me! :D[/font][/size]