For me the hack works. I start my injector as an administrator. I write only "crossfire", not "crossfire.exe" and i inject the dll.
After that, i launch CrossFire and after the loading, a window appears : "Coded by [MPGH]blood" and another window appears, mpgh.net.
Then i join a battle and press 3 or 4 times on "Delete". Then i see behind walls. But the walls are not white, they are like when you dont use the hack.