Install the msi file.
The DB-es are installed in your C:\SQL Server 2000 Sample Databases
You can either move the MDF files to Sql Server 2008 DB Directory , or use it from the original installation folder. C:\SQL Server 2000 Sample Databases
Enter Management Studio
Right Click on Databases and Attach..
Press Ok and Ok .
Do it with each MDF you want to use and you’re done .