Microsoft SQL Server 2008R2 (RTM)
This release is dedicated to the samples that ship for Microsoft SQL Server 2008R2.
For many of these samples you will also need to download the AdventureWorks family of databases
For the SQL Server 2012, Creating a Simple ETL Package sample, you need to download the AdventureWorksDW2012 database. The database is available for download at AdventureWorks for SQL Server 2012