I'm trying to add this API (http://devnet.kentico.com/Knowledge-Base/E-commerce/Events-as-products-in-Kentico-6.aspx) to my current project and I've run into some problems. For step 5, I haven't been able to successfully add a reference to the CustomEventManager. I've gone through the steps to add a project reference, and it seemed to work, but it didn't add a copy of the assembly or xml documents to the bin folder. Attempting to rebuild the solution fails, and the error list shows several namespace errors from the CustomEventHelper.cs file. When I try to view the web site in a browser window, I get the compiler error message "Compiler Error Message: CS0234: The type or namespace name 'CustomEventManager' does not exist in the namespace 'Custom' (are you missing an assembly reference?)" When I try to add the reference again, I get the error message "A reference to 'CustomEventManager' could not be added. A reference to the project 'CustomEventManager' already exists in the Web site."

Also, setting the references to the existing DLLs (step 4) took care of most of the references, but there are still missing references for CMS.IDataConnectionLibrary and CMS.Staging. Are those required? How do I set those references?

Any idea of what I could be doing wrong? My project has the 6.0.19 hotfix installed.

Thanks.