This actually looks like a copied version of the AmazonFeed WordPress plugin from Warkensoft.com
http://wordpress.org/extend/plugins/amazonfeed/
http://www.warkensoft.com/2010/04/beware-of-thieves-like-amazonpress/
It would also be good if the developers of the "new" version let users what percentage of product sales are assigned to the developer's Amazon Associate account. 5%? 10%? 20%? More?