Download a version of Minecraft Beta 1.8.1 and put the world folders in the saves folder.

These are the two worlds that were combined later in the server’s life. The Capital world is basically the same just without some builds from the 2014 world. The Survival world is a little bit different. Oceanopolis does not exist yet and the highway system is not complete. South Survivia still has trees and logs before the whole area was corrupted. Also Rob’s Super Far House is accessible.