I think that UnsecuROM 1.0 doesn't work because he tries to make the crack from the original exe on CD and not the original PATCHED exe on hard disk.
One possible solution would be: make a full install, patch the game with the official patch and burn a CD with that content and then use UnsecuROM to patch the exe of the new CD ... but ... I don't know if that is going to work
