Okay, so a similar issue to the one a few pages back: I can enable the mod from within Civ just fine, but I don't see them anywhere in the setup screen, advanced or otherwise. I've followed your instructions to a t, copied the zip into the MODS folder, extracted, and everything appears a-okay. Folders show up as they should. I open Civ, verify the mod has been enabled, and start a new modded game. My other installed civs show (Holy Rome, Portugal, Spain, etc...) but sadly, that's it.
Some questions:
a) could this be a conflict issue with another mod? I haven't gotten that far in the t/s'ing yet - the intro movie gets real annoying fast.
b) I know this sounds odd, but perhaps it's due to the fact that I use WinRar instead of 7z? I've used both in the past and never found a difference...but I note that the previous installation problem from a few pages back said they "un-rar'd".
c) no chance there's a cap on the number of civs you can have?
I'm running Windows 7 x64. No issues with any other mods.