eBay Integration is Store Manager for Zen Cart addon which allows to list your Zen Cart products at eBay action and in this way sell via alternative sales channel.
You can find general information on the addon and its trial version here - http://www.zencart-manager.com/zen-cart-ebay-integration
Documentation with step-by-step manuals which explain how to perform main operations is available at: http://ebay-export-documentation.emagicone.com
If you have any specific questions on the product, post them here and we will gladly answer them.