@campwed: supernu's suggestion works, only it's not enough on Adelle (left and bottom borders of each cell will go, top and right borders of the table will stay).
I'm not seeing supernu's suggestion in the sourcecode of your page, I'm seeing this:
<table style="background-color:#ffffff;" width="100%" border="0 !important" cellspacing="0" cellpadding="0">
These are all useless. Tables on Adelle don't have a bg color, so specifying white over the white bg of the site is superfluous. The rest are outdated coding that doesn't work (and 100% width is the default on Adelle anyway).
For more on table coding see my tutorial:
If you don't have the Custom Design upgrade, you need supernu's suggestion for each opening td tag, and for the opening table tag as well:
If you do have the upgrade you don't need any of this in the Text editor, but you need to post in the CSS forum, not the Support forum.