SQL 2005 Reporting Services integrated with MOSS 2007

What a painful, painful journey this has been so far. Trying to install SQL Reporting Services 2005 in a MOSS 2007 farm is not so straight-forward. I have found this document posted on the Microsoft SharePoint Team Blog, but both times I have followed the documentation, I've ended with an HTTP 401 error when trying to configure integration settings in SharePoint Central Administration. The second attempt was with a PSS engineer leading me along. He seems to think that SQL Reporting Services requires Kerberos, and he has had me create SPNs, and make several Kerberos-related changes. The referenced document makes no reference to a Kerberos requirement. In fact, it simply states that if you are not using Kerberos, you need one setting change in Central Administration. Back to the grind tomorrow.