Joomla Extension Shopping Cart: Joomla Extension Vikcatalogue – basic tutorial. nzwebs.com – this tutorial covers how to add items to the categories, with images or descriptions. Also how to add products. VikCatalogue is a basic catelog extension, nice and simple – it would be great for putting up a portfolio of work with descriptions and prices but not actually with a shopping cart. However, there is still the possibility that people can enquire about items. Also, you can have more than one image per item if you wish. It’s really very clever, and so simple.