The Pre Loader!!!

Today i thought i would look around the internet for some help on pre loaders and i found the answer from the amazing website http://www.republicofcode.com/tutorials/flash/as3preloader/


This website had a step by step tutorial so it made me understand how the pre loaders work.
I will be putting this at the beginning of the game to make the game flow better.
I think pre loaders are important because if games do not have them they will have a blank screen before the games start and people will wonder what is going on.