Question : Bottom of main content box is not stretched enough to be even with bottom left / right corners

Need to fix the bottom of the main content box.
The center of the bottom is not on the same hortizontal position as the left and right rounded corner.
http://www.topsecurityinc.com/index15.html
http://www.topsecurityinc.com/style15.css
I think the CSS area that controls this in this section
/* Beginning of Rounded Cornered Main Table */
.bottomgif {
    height: 20px;
    background: url('../web/images/content_r3_c2.gif') repeat-x;
}
Any specific ideas would be appreciated.

Answer : Bottom of main content box is not stretched enough to be even with bottom left / right corners

You have the wrong 'height' on the corner images.  It should be 20 and you have 25.