I'm sorry that you feel this way, but we have delivered what the book promised.
When the book was published, RDS 2008 was not officially released. The samples were therefore provided for V1.5. These samples are still available for download and they work with VS2005.
When RDS 2008 shipped, all of the samples were updated to VS2008. We therefore decided to move to VS2008 for the book samples as well. The updated code is available from:
Although it is possible to use VS2005 with RDS, this is no longer the recommended configuration and you would have to manually edit the .sln and .csproj files to convert back to VS2005.
Finally, you can install VS2008 Express for free and it will work side-by-side with VS2005. I have used this configuration myself and I can assure you that it works. Also, I would suggest you try upgrading your code to VS2008. I don't think you will find it as painful as you expect.