in VS.NET go to Help->Show Start Page, then under the My Profile section, go to the Window Layout dropdown and select Visual C++ 6. that should clear up any confusion.

(i think, i didn't use VS 6.0)
you can also set Visual C++ 6 for keyboard layout and C++ for help filter. or you can just select Visual C++ Developer for the Profile and it will automatically switch those other options for you.
hope that helps!