servers running nightstalker's universe

Trying to connect to any server running Nightstalker's universe but the all seem to have a newer build than what i have. I just downloaded the newest version of the mod i could find on LR. Thought i found a patch too but the file is broken or incomplete. doesn't mater how many times i download it either. Can someone please help. I prefer to connect to USA-1 or EU-1 servers. ty

1.66 final is the 1 i downloaded amd used but it still said the build was incompatable. ?????