The configuration file for the SBS 2003 BPA has been updated with new rules. You can check to ensure that you have the latest version of the configuration file by clicking on the About the Best Practices Analyzer link on the left. This should show the Configuration File Version as 2.1.26.0. (as of 3/31/2009). Some of the new checks include: Checks for occurrences of the Windows SBS Server Status report timing out; Checks for Mailbox Manager policies enabled on recipient policies

Full Article