The Operations Guide together with the Report Authoring guide have undergone slight revisions.
Operations Guide -
Mar 15 - Updated the ‘How to Promote a Management Server to a Root Management Server Role in Operations Manager 2007’ topic in the ‘Updates to the Operations Manager 2007 Deployment’ section.
Changed formatting in the ‘How to Move the Operations Manager Database in Operations Manager 2007’ topic.
Apr 11 - Updated the ‘Configure Notifications’ section to address customer issues, as well as provide the procedure for an operator or advanced operator to create their own notification recipient and subscription.
Report Authoring Guide -
Feb 29 - Corrected the syntax of the query to create a custom report
Apr 11 - Clarified the procedures available in the scenario to create and publish a report.
The docs can be downloaded via http://www.microsoft.com/downloads/details.aspx?FamilyID=d826b836-59e5-4628-939e-2b852ed79859&DisplayLang=en