All of them, annoyingly.
No.
No.
No.
So the way you actually do it is this:
Download Update 3 (which is a full game, but not the latest one)
Download Update 4 (which doesn't work by itself)
Download Update 5 (which also doesn't work by itself)
(if you want the WTMod, also download the Update 3 Mod, the Update 4 Mod, and the Update 5 Mod)
Install Update 3.
Unpack the Mod for Update 3 on top of the Update 3 files (if you want the game modded), overwriting as needed.
Unpack Update 4 on top of the Update 3 files, overwriting as needed.
Unpack the Mod for Update 4 on top of the Update 3 and 4 files (if you want the game modded), overwriting as needed.
Unpack Update 5 on top of the Update 3 and 4 files, overwriting as needed.
Unpack the Mod for Update 5 on top of the Update 3, 4, and 5 files (if you want the game modded), overwriting as needed.
This seems to be the most reliable for most people, though some are still reporting softlocks and loops on at least one choice. I wouldn't know, I gave up in disgust, dropped support, and am waiting for a true final update all-in-one without having to go through this rigmarole.
