AS2 Graphic Preloader

So, after searching on how to add preloaders to external swfs i found this thread:

http://board.flashkit.com/board/show...+external+swfs

Which totally works for me, yay! But I'd like to add a graphic load bar to the preloader. My question is, is there a way to add a simple graphic load bar to the preloader action script in the above thread and what is the actionscript that needs to be added?

I hope this makes sense and I hope someone can help!
Please and Thank You!

-F154stix