To create a flash site, aka a movie which has several different "pages" and navigation between them, maybe a custom mouse cursor, sounds, etc., first you need a preloader- the site, if it is at least a couple pages, will be big enough for a dial-up user to want a preloader, and preloaders are so simple to create it is more helpful than time consuming.
On scene 1, keyframe 1, make 3 textboxes, all of them dynamic. on the first type _root.c as its variable, on the second _root.d, and the third _root.e.
Then put this actionscipt in the frame actions: a = getBytesLoaded(); b = getBytesTotal(); c = Math.ceil((a/b)*100)+"%";
if (a == b) {
nextScene ();
} d = Math.floor(a/1024)+"kb"; e = Math.floor(b/1024)+"kb";