Update Component after purchase

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : latest free
-- Joomla version -- : 3.2.2
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

Hi there

Once i purchase the Hikashop component, do i lose all previous work in the free version of the component on my site or does it just add new functionality without me having to create everything from scratch?

Thanks