Joomla Virtue Mart and OpenX Ad Server Customization

Designed and customized a joomla website that allows sellers to register on the site and post their products for sale on the site. Integrated with OpenX for serving ads and tracking. We have used virtuemart for the shopping cart and customized it to allow the direct payments to seller accounts.  The site is self managed and payments made to sellers for the selling of their products on the site are automated and require no intervention from site admin.