Center main content/rows

I'd like the main content of the pages to be centered with the logo and menu which I have managed to center using different tips in this forum. On the sub pages, the rows are off center of the page. http://www.new.stoneimpressions.com Also, can I change the background color and image color of the actual circular social widgets, not just the background of the footer bar? I'd also like to rearrange the footer so that the widgets are centered, the search is left justified and the custom menu in the footer is right justified. Thank you!