Thanks to a lot of great work on the part of Crypton we have a new UER Server!
It requires a mod pack install, however.
So what you need to do is go here
and install the latest version of Tekkit. This is the mod pack.
Install the contents of Tekkit into you minecraft folder.
--If you have problems with Tekkit talk to Cypton or myself about sending you the files directly, since I had some issues getting it to initialize and thats what we did.
Log in to MC, click multi player, and enter the following server location: