need help adding an image to the sides of my site

[fatddrfreak]

Ok, this is my first post. I have lurked around the forums searching for pretty much everything else I need.
My site looks very small and plain when I view it on a wider monitor. I was playing around and made a sample of what I would like to have my site appear like.

The site ishttp://www.murdaville.com

Now there are just plain white areas on either side. I dont want to change the background of the center part, just the outside margins. Also is there a way to get this to stretch or adjust automatically for different screen resolutions?

I edited the top part of my stylesheet.css by changing:

body {
margin: 0;
font-family: arial;
font-size: 10px;
color: #721e3c;
}

to

body {
margin: 0;
font-family: arial;
font-size: 10px;
color: #721e3c;
background-image: url(../images/back_image.jpg);
}

Is'nt this what I am supposed to do? Maybe Im missing something obvious, but any help is appreciated. Thanks again in advance.

[Kim]

Not Found
The requested URL /style/includes/templates/CUSTOM/images/back_image.jpg

[fatddrfreak]

wow, thank you. I didnt realize it was trying to open the images folder that deep. I thought it was zen cart directory/images.

So thank you again.