I tried using the GEM editor to make a mission, but it just kept crashing whenever I tried to place some grass...

When I update my game appear a message "The setup has detected no version Men of War Vietnam is installed" My game is installed but game does not appear in regedit. :(

Patch Error
 

I have Men of War Vietnam v 1.00.2 and I have been searching for a "how to" article for how to download the patch 1.0.0.2 which comes with the game editor, from what I have heard. I have downloaded the patch but whenever I try to use it it just says, "The setup has detected no version Men of War Vietnam is installed". I have it downloaded on steam and steam won't automaticly download this update for me. So I have no idea what to do. If you could help me out, please email me at gjstec@charter.net.
Thanks
Steckifranic