Adding Version 1 Scenery

First,  navigate to this page:

https://web.archive.org/web/20080208142539/http://www.flightgear.org/Downloads/scenery-0.9.10.html

Click on the square you wish to download,  and then note the name of that .tgz file.

Next, navigate to 

http://mirrors.ibiblio.org/flightgear/ftp/Scenery-v2.12/

Download the file

Follow instructions for adding that file to the scenery folder.