That's if you trying to use your Wargamming account and download it through steam. I've already contacted War Gaming you can get it switched to their Client, but its a big headache, you have to give them so much information
I had downloaded this pack a couple months ago and everything was working great, until a new update came out and My Frame rates dropped So I uninstalled the mod pack thinking it was screwing with my game(later to find out Wargaming was having issues) anyway I'm going off topic.
I run the Game through steam and for the life of me can't remember which file I need to put it in as I can't get anything to actually load into the game and I can't find anything that helps Steam users. Any information would be appreciated.