joomla templet

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : 1.5.3
-- Joomla version -- :2.5
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

I have to update my joomla to 2.5 and want to continue to use hika shop-which templates for joomla 2.5 are compatible best with hika shop? and to which version do I have to upgrade hika shop? thank´s in advance for help