WebPage made out of flash mx

I want to make a page entirely out of flash. First i need to know what size to make the page (e.g: 550x400) and i made a preloader to see the percentage of page it has completed, but the host doesnt load the page until its all done(including the preloader): is tehre a way i can make it load as u go, instead of loading up all at 1 time?