@entrails Unless you messed something up the info null gave you should work.
For BNet (orginal version) you dont really have to do anything when you try to go out on Bnet it should autoupdate to the version you need.
If you gonna use one of the other servers that ENT host on ENTConnect or "server.eurobattle.net" You need .1.27b And need to install/set it up right.
But most if not all of ENT is on Warcraft III: the Frozen Throne.