Help! Need preloader that plays animation fully before starting main movie

Hello, I’m in need of a preloader, (or easy tutorial on how to create one), that will run a progress bar and also play a short welcome animation all the way through… regardless of connection speed. One that checks total frames of mc against total bytes loaded or something.

I am SO not a coder, mainly design… so EASY is key. :]

I really appreciate any help you can give me. [desperate!]