data transfer from eBay and Amazon sites to mysql

Currently transfer data from our [login to view URL], [login to view URL], zencart ,sites need to update the information I am receiving by adding extra data to mysql. The information from mysql is then placed within the backend system of our website for stock control. Also require the same information taking from 3 new sites [login to view URL], amazon.com. zencart Need to transfer the data to our backend website. ( basically a clone of the UK website importer) for our USA Importer