SQL Server 2008 R2 Express with Advanced Services - I could not deploy the 2008 R2 sample reports because Shared Datasets are not supported in SQL Server Reporting Services 2008 R2 Express edition.
(see http://social.msdn.microsoft.com/Forums/en/sqlreportingservices/thread/08ccb387-ca7f-4a3d-9f77-e6f9d95f105f )
 
Got a series of errors like this when deploying from Bids:
Deploying data set '/Datasets/EmployeeSalesDetail2008R2'.
Error rsOperationNotSupported : The feature: "Shared dataset" is not supported in this edition of Reporting Services.
 
Some of the reports did deploy however; presumably the ones that dont need shared datasets.