Cross Selling feature is available in AbleCommerce7 but it is quite limited. Particularly it lacks AbleCommerce5.5 feature of allowing to associate any type of catalog node to a product for cross-selling purposes. In AC7 you can only associate products for cross-selling.
Our new Corss-Sell Items Plugin enables you to associate all types of catalog node objects to a product for cross-selling purposes. You can associate categories, web-pages and links in addition to products.
Please check the following link for details
http://blog.plugables.com/ablecommerce7 ... commerce7/
Screen Shots
Merchant Interface
Cross Sell Items in content area
Cross Sell Items in sidebar