We run only the one server, uRPS. It's running on b1.8.1 and then will be running on mc1.x based on the recommended stable build of Bukkit Elt chooses to utilize. You can use the tool MCNostalgia to downgrade your client, though I think a clean copy of the b1.8.1 .jar file was provided a few pages back too.
I keep getting an outdated server message when I try and log in. I only just began playing on your servers when I jumped on the update. Curious about what your plans were.
I'm talking about the survival server, not sure if you make a distinction between the two, or if you could run them at different versions.