Ive got an idea... but I don't know where to start!

Hey! I wanna make a flash “countdown timer”, but instead of using numbers, I want a frame to be played, something like an advanced preloader (where you have a mc with 100 frames and as it loads it plays the frame, eg: 51% loaded = play frame 51,etc.).
I am really good at the design side of flash, but ActionScripting is not my strong point. Please Help me! :stuck_out_tongue:

Thanks!