Supplemental reports in Configuration Manager 2007 are reports that are created outside of Configuration Manager and added to the Supplemental folder on a reporting point. If there are multiple reporting points, the supplemental report must be copied to the folder on each of the reporting points from which users need access to the report. After the supplemental report is copied to the reporting point, you can run the reports directly from Report Viewer or link another report to the supplemental report by using the URL for the supplemental report as a link target. Use the following procedure to install a supplemental report.
To install a supplemental report file
On a reporting point site server computer, navigate to <Installation drive>:\Inetpub\wwwroot\<Report folder name>\Supplemental.
Copy the supplemental report file to the Supplemental folder.