I downloaded one of Mr. Grim's concept themes for Win7. I thought I had done it correctly, but when I used the Theme Installer v1.1 to install it I got the "Unhandled exception . . ." error. When I apply the theme in the control panel it simply changes the desktop background to black. Can someone help me with this?

Thanks. Any comments regarding my stupidity are warranted, so therefore I won't take offense.