I attached the ILVisualizer VS2008 solution in this post. There is no source code update; the only change is to upgrade the Microsoft.VisualStudio.DebuggerVisualizers.dll reference from version 8.0.0.0 to version 9.0.0.0.

Just for your convenience, so you can see a successful build after downloading in VS2008.

Thanks Julien for leaving the instruction here.