Please, see this single product page: http://fotoetude.com/test/shop/nice-thing/ . The question is: what is the reason of such alignment of sidebar layout? Maybe, there are some widgets with such width of sidebars? Because now the widgets use only half of sidebars place.
And, is it possible to place the widgets close to each other (2 widgets in row), in order to get something likes double sidebars layout?