If I understand what you want to do at all, you want just a border around the left and right sides of the table? Use CSS instead of a 1-pixel graphic.

<table style="border-left: 1px red solid; border-right: 1px red solid">

Something like that. It'll save you from having 4 td's, this way you'll only have 2. Make that big round thing at the top be exactly as wide as your table. Also be sure you set your padding and spacing for your table, that's going to mess you up. You likely want your spacing to be 0.

I can hardly understand what you want it to look like from your first post though.