I'm unclear on whether this Premier Partner Edition thing is supposed to actually be able to build MC2 or if you need the full version of Visual Studio. If it isn't, let me know. If it is, what am I doing wrong?

AFAIK, I have installed "Microsoft Windows Installer 3.1", "XML 6.0", ".NET Framework 2.0", "Visual Studio 2005", and "XNA Build CTP" succesfully - I was able to mess around with an XNA project some, a la the tutorial.

But if I open MechCommander2.xnaproj and try to build it, I get the error message:
Error 1 Could not load the Visual C++ component "VCBuild.exe". To fix this, 1) install the .NET Framework 2.0 SDK, 2) install Microsoft Visual Studio 2005 or 3) add the location of the component to the system path if it is installed elsewhere. C:\MechCommander2 Source\BuildProj\MechCommander2.xnaproj 5671

Thanks in advance,
-Jamie