Percentage preloader for external file

i’m loading a .swf into my main movie and the file i’m loading is kinda big. so i want a “loading” animation that gives the percentage of the file being loaded and not the percentage of the main movie…

i tried putting the getBytesLoaded stuff into the .swf being loaded but once the main movie starts to load it, it counts the bytes of the main movie (very small filesize) and not the file being loaded…

is anyone not confused enough to point me in the right direction?

THANKS!!!