It has come to our attention that the words "new" and "old" were inadvertantly swapped when using the rskeymgmt -r option. The steps should read:
11.Open a Command Prompt window, and change directories to %ProgramFiles%\Microsoft SQL Server\90\Tools\binn.
12.Type the following command to list installation IDs of Reporting Services:
RSKeyMgmt -l
13.In the list, find the installation ID that corresponds to the new data-tier server.
14.Type the following command to remove that installation ID, where DTInstanceID corresponds to the new data-tier server:
RSKeyMgmt –r
DTInstanceID
NoteDo not remove the installation ID that corresponds to the old data-tier server.