Assistance with Page Formatting

On my page I am trying to get the Adverts to nicely sit in one row after the other however the box is stopping half way. How do I increase the box to the full width of the Page? There once was Price Tags on there and a Image Saying Sale, now its gone. How do I place the Title of the Product, Sale Image and Price of the Produt in the same row? http://www.totalelectriccarreview.com/shop/