admin/Tools/Ez Pages...

Select the page you want to edit and click the little green Edit button. There you'll see the code you originally entered to make the content of your EZ Page. Edit it to remove the hard-coded settings and instead add class names to the table, to each tr and to each td tag. Take note of the class names and add them to the bottom of your stylesheet and style away.

Rob

P.S.
Is that a footy field in the background of your avatar?