Access Is Denied Error Writing to Custom Event Log

 I am migrating a Web application from Windows Server 2000 to Windows Server 2008.  The installation code creates a custom event log and three sources.

            //
            // Also create an eventlog and source if it does not already exist.
            //

           bool DeleteExistingLogs = true;

            try
            {
                string theEventLogName = "CCSLogs";
                string theInfoSource = "CCSInformation";
                string theErrorSource = "CCSErrors";
                string theDebugSource = " ...