You can download the SQL Server samples from
http://sqlserversamples.codeplex.com/
The Analysis Services solution that you will find there is not the same as provided in 6234 (it is similar, also based on AdventureWorksDW2008), but it is much more complete and contains more cubes and related items). however, it is very nice if you
just want to practice with Analysis Services on your own virtual machine.
If you want to follow the actual examples in the course, they should be inside the "AllFiles" compressed file that is included in the "downloads" section in the Student CD that you received inside the course manual. Since this is copyrighted material,
I don't think that it is legal for anyone else to just send you a copy of this file.