The extension has a RokBox mode, simple load your image into the RokQuickCart administrator, at Admin → Components → RokQuickCart, for a particular product and the extension does the rest.
Joomla! makes it easy to launch a Web site of any kind. Whether you want a brochure site or you are building a large online community, Joomla! allows you to deploy a new site in minutes and add extra functionality as you need it. The hundreds of available Extensions will help to expand your site and allow you to deliver new services that extend your reach into the Internet.