The Affiliate Window Banners plugin uses the V3 api to load related products into your sidebar widget. You will need to have signed up as an affiliate
Affiliate Window Banners uses the V3 api to pull in products from the Affiliate Window marketplace. The products are then displayed in the sidebar widgets. Obviously you need to have an affiliate account with Affiliate window for this to work. Once you have an account then you can go to the api credentials in your account settings to sign up for a V3 api password.
There are some server pre-requisites: WordPress 3.0, php 5.3, SOAP.
Demo can be seen at my experimental development sites: http://homemediaplayers.co.uk. This plugin is shown immediately above the split widget section.