Problem after update

-- url of the page with the problem -- : www.notteconvenienza.it/ecommerce1/
-- HikaShop version -- : 3.1.1
-- Joomla version -- : Joomla! 3.4.3 Stable [ Ember
-- PHP version -- : 5.5.38
-- Browser(s) name and version -- : IE FF CHROME etc

Hi all,
updated from versione 2.5 to 3.1.1
I lost my home page and product configuration as I updated
now I see the product in full page size and with problem on overlay of price and details.
How can I set to have back the look and feel of the original template as shown here: bambootheme.com/showcase/feb14/
in the BEST SELLERS
thanks
Vivaldo