Hey Sappho, I copied your page and tweaked it a little. I got all of it to work in 800 wide.
you can view it and copy it back from here if you want.
what I did was to talke out the sizes for the tables and use % instead, also resized the big picture of the santa.
you had your main table set at 962 pixels wide and some of the other tables inside of it at 800+ wide.
luck,
robert