the essential idea to that is the sidebar, where you enlcose the board inside a table via the header and footers.
adding
<table><tr><td valign="top" align="center">
to the header, and
</td><td valign="top" align="center/left/right"><!-- CONTENTS OF SIDEBARD --></td></tr></table>
That would place the board in the left cell, and the sidebar would be to the right of it.
You could use similar html to customize the look of your board by using html in the header and footers