Background problem and resize templete wide

Hello! I just got the "hot furniturestore" and I want to have a background image in all page but the original site extends in all the wide of the page, the template says that the template width is 960px. but I still cant change it.

I try to change it in layout.css
body {
margin:0;
padding:0;
font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
line-height:20px;
bbackground:url(../images/backgroundt.jpg) top center no-repeat;
}

but it still looks withe in the sides and in the low of the page the images repeat in x, can you pleas help me?? I attatched the image.

Thanks for your help!!

In your post property background is written as bbackground with two b, if that is case that is not good. First check that.

In order to show background of body , you must remove backgrounds (image and also set background color to transparent) of elements in front of body.

#header {...
#carousel_wrap{...
#content_gradient {...
.footer_wrap {...
.footer_wrap_copyright {... <- only color

Hi Ivan! thanks a lot for your quick response, I already try the things that you told me to, but I coudnt find #header and #content_gradient in layout.css, and the webpage still looks the same, I change the others like this:

.footer_wrap_copyright {
padding:5px 0 10px 0;
background-color:transparent;

is it ok?, can you help me please?? Thanks again!!

BR, Isabel