I found a bug some time back that did not allow one to install Management Reporter while linking directly to a SQL Server 2008 database. One had to install RTM and point to a database which was SQL Server 2005 and only once SP1 for MR (SP2 for PPS) was applied could you then change the database to SQL Server 2008.
Just had confirmation from Microsoft that this will be fixed in SP2 for Management Reporter.
SP1 for MR was actually packed with SP2 for PPS so we will get this in SP3 for PPS which will be released in the Summer.
- Paul Steynberg