if their are runing in windows, the only they need to do is run the setup.exe...
Afer install I recomend to download the 1.6 patch, that changes the CVS, because the 25th one have some problems which mods...
No motter if do download it from the torrent or the direct download, just unzip/unrar the big file, them run the setup.exe... There is also a .txt that explain that...
P.D. Ok, I not have time to full CVS test in this days, so, I planing the 1.8 vercion, their will only released if the Zeta VPs causes not problems, but I need a recomended CVS which env maping, because the env maping causes some problems, I will give two CVS, one which env and other whiout them... I need a little recomendation for this.