IIS Diagnostic Toolkit
Did you ever do some troubleshooting on authentication and authorization in Reporting Services 2000? You wish you had the Reporting Services 2005 Configuration Manager huh?
Check out the IIS Diagnostic Toolkirt from Microsoft. It helps you check permissions on the folders and authentication among other interesting features.
The tool can be downloaded from:
http://www.microsoft.com/downloads/details.aspx?FamilyID=9bfa49bc-376b-4a54-95aa-73c9156706e7&DisplayLang=en