Hello,
Developer here i am looking at your site and i am sure i can Help you on 3 type of group, retail, Ncp and Wholesale modification and change you required.
Relevant Skills and Experience
7 years of experience in website and desktop application, with Kye skills on php, wordpress, joomla, Drupal, Magento, xml, Html,xHTML, javascript, jQuer, My Sql,Symfony,WebServices, HTML5,CSS.
Proposed Milestones
$180 USD - open cart database updating
Let's discuss more in private chat and work on this quickly.