You can view the test site http://www.megabenman.com/testpageclean.html. The thing about these tables is that they automatically stretch out to fill the entire screen in width. That means that a person using an 800x600 monitor and a person using a widescreen laptop would still fill up most of the screen in width.
here is the table code:
<div class='tableborder'>
<div class='maintitle'>Title</div>
<div class='tablepad'>Info</div>

</div>


How can I use that code to make 2 sidebars 300px in width on both sides?

Is this possible with those codes are do I need a different code for the sidebar tables?

Please... I can't start my site until I learn this

if you want a table solution...

<table width="100%">
<tr>
<td width="300"> left stuff here </td>
<td> middle stuff here </td>
<td width="300"> right stuff here </td>
</tr>
</table>

if you want a css solution using divs, that will take a bit of extra coding, but it is possible.

Yes, I need it with CSS