Racking my brains for years about this one please hellllp

HI all…
i have a flash / html issue i need to shed light upon so here goes.
i am creating a site in flash that will sit whithin a table ( html i dreamweaver) so typicly the flash swf will look like it is centred upon a html page…

i wanted to make the backgroung of the html page somthing like this …(http://www.ac-digital.com/) if its just a tiled image can someone show me how and what i need to do to make it tialble

Manky thanks