Official answer:
These samples are designed to work with Visual Studio 2005. You can download the Express versions of Visual Studio 2005 Beta 2 from http://msdn.microsoft.com/express in order to run these samples. If you want to import the source code files into Visual Studio .NET 2003 it may be possible to run them without making any enhancements, but they are not tested on Visual Studio .NET 2003. If you happen to get them to work, please let us know at this forum since other users may find it useful.

Unofficial:
I have not run these files through 2003 myself but I'm pretty certain I'm not using any 2.0 functionality *yet* so you should be OK. However I can't promise that will continue to be true in future articles.

Zman
http://www.thezbuffer.com