custom background

I recently purchased a single license for Thesis and I must say, I'm let down. I have since discovered that support for that theme is near non-existent. So, I did some digging online and found Atahualpa and here I am. I have a simple task I need to complete and would like to see if I can get a response here. http://www.juliegracestudio.com is the site I am revamping (hopefully with atahualpa). looks like that background is drawn using (4) images and (3) divs. here is the code that makes it work currently.

"#page {
background: #e2ddd9 url('images/kbgwide.jpg') ;
border: 0;
text-align: left;
}
#wrapper {
padding: 0;
margin: 0;
background: url('images/wrapper.jpg') no-repeat center top;
width: 100%;
display: table;

}
#footer {
background: url('images/kfooter.jpg') no-repeat top;
border: none;

}
"

Is this going to be doable using atahualpa?

thanks so much for any help. I'd love to see that I can get support here.