Go to your DarkGDK installation folder, then copy these:
The 3 folders in Wizard\Projects goes to My Documents\Visual Studio 2008\Dark GDK
All files from Wizards\Files goes to My Documents\Visual Studio 2008\Wizards, and then, open up all three Dark GDK - ******.vsz in notepad and edit the absolute path, it should be something like:
ABSOLUTE_PATH = C:\Documents and Settings\<your_username>\My Documents\Visual Studio 2008\Dark GDK\Dark GDK - 2D Game\Dark GDK - 2D Game
Pay attention not to forget to change the line to your username and do it for all three . vsz files. Then start VC++ again, that did it to me.