Here is the 4th article on the Business Connectivity Services (BCS) using SharePoint Designer 2010. Here we create a new External List to surface data coming through the External Content Type (ECT) we created in the 3rd article.

http://www.sharepoint24x7.com/2011/04/article-%e2%80%93-business-connectivity-services-bcs-part-iv-%e2%80%93-creating-an-external-list/