1 - Those are indeed all, as there are only as many scenarios as fans have made.
2 - In the case of the scenario you have, it goes in C:\Program Files\Stardock\TotalGaming\GalCiv2\DarkAvatar\Data\English\Scenarios, as it is a scenario for Dark Avatar. If the scenarios folder doesn't exist, create it.
Thank you for the reply, Macmatt. It was not precisely correct, at least not for me, but after a couple of hours of trial and error I have been able to download and install all those scenarios in the Galactic Library. (See my first post for how to get to the Galactic Library.)
For me, and I suspect for others who have installed Twilight of the Arnor, the critical thing that is missing from Macmatt's path is an insertion of \AppData\ between DarkAvatar and Data. There was no Scenarios file at the end of his path, and creating one did not work. The correct place to unzip the downloaded scenarios was this: C:\Program Files\Stardock\TotalGaming\GalCiv2\DarkAvatar\AppData\Data\English\Scenarios.
Also, directions for the "Play With All 12 Races" scenario say to put the ForeignTreatiesWnd.dxpack in the GalCiv2\Mods\Screens folder. I had no such folder, and creating one did not work. The 12 Races scenario lists in my in-game scenarios screen, but I am unsure if the scenario will play without that ForeignTreaties file. So I have put it here: ...GalCiv2\DarkAvatar\AppData\Mods\Default\Screens. If I play the 12 Races scenario, I will click Use Mods in the Twilight of the Arnor Options menu.
The other thing involves the "5 Way 1 Planet Each" scenario. The path I was directed to place the map file in did not work. It did work after I copy/pasted it to here: ...GalCiv2\DarkAvatar\AppData\Data\CustomMaps.
Again, maybe Macmatt's path and the scenarios' instructions will work for you if you do not have Twilight of the Arnor installed. I have Twilight of the Arnor installed, and they did not work for me.
