I don't have a problem on installing CIV4....I have already installed Civ and BTS and I am playing it. I have problem with this specific mod. btw....also the world-war mod that alredy exists in the BTS is not playing well....the units are not showing at all....instead of the icons of the units, I see just a ...box! And when I try to play World War II mod, CIV crashes before loading it! I don't have a clue why that is happening...however, i searched the log files found it on the local/temp and i attach the description of the error. Perhaps, a good programmer may help me!! You can find the log file here: http://www.megaupload.com/?d=HWCINPKK PLEASE HELP!