DJ-Catalog2 ver. 3.7.2 has brought the support for Default images, which are displayed when for example product does not have real image assigned. You can choose different default image for products, categories and producers and of course you can choose not to use default images at all.

In order to select default image, please open "Image Processing" tab in DJ-Catalog2 configuration and select an image for "Default image" parameter for desired type of content.