[SOLVED] Individual Posts / Pages Not Displaying Properly

I've searched and browsed through countless threads here and haven't found anything about this.

I am in the process of tweaking my site and have ran into a slight problem. I was using a layout consisting of the center column and the right sidebar. I've decided to get rid of the sidebar. I also changed the background of the posts. The background consists of 2 images, one centered on top and one centered on bottom with solid background color underneath. On the main page, the posts look exactly as I want them to. However, when I click on an individual post or page, the top and bottom images in the background are not showing, just the color. I styled the background in the ATO > STYLE POSTS & PAGES > POST Container. Perhaps there is a conflict somewhere.

The url for my site is: http://www.uphereinmytree.com/

Any help would be greatly appreciated.