Cannot change background image & mobile issues

I seem to be having more issues. I cannot see any option to change the background image. i just have a plain white background, even chaging the color in theme options keeps it white. The other issue I am having is the mobile site seems like its not quite right. check screenshot. http://tinypic.com/view.php?pic=f4r5ab&s=8 website is at http://goodandroidapps.net