I just went to your website then right click the mouse on your homepage.
then left clicked on the word view source on the menu that pop up.
then on the page that came up I left clicked the mouse on the top tab edit.
then i left clicked on find on that menu.
then I typed in xhtml.
then click on find it did not find it that means your page is a fixed width.
not a variable width

here try what I typed above on this page you will find xhtml this is a variable with > http://occasionsandstyle.typepad.com/lagniappe/

also thanks for posting that David (xhtml), that is what gave me the idea to check the above
I am clueless just feeling around in the dark with a stick trying to put this stuff together.