Hi,
In some cases you do need to edit the layout.master file, and this is one of those cases.
In your template html the art-nav and art-header stuff is outside of art-sheet but in your layout.master it is inside art-sheet so you need to re-arrange it to match your exported template.
also you need to change this:
<div id="art-page-background-middle-texture">
to this:
<div id="art-page-background-glare">
<div id="art-page-background-glare-image"> </div>
</div>
and then remove the closing div at the bottom.
Hope that helps,
Joe