Tables are tricky like that, what would be best is to make that image the pages background, and have a table that fits inside it.
so:
Code:
body {
background: #FFF url('logo_mid.gif') repeat-y center center;
}
then remove the backgrounds from the table, adjust so your cells fit inside your new background, and you are good. Sometimes you have to thing outside of logic to make a design really flow.