Bukkit

What steps will reproduce the problem?
1. Making a map
2. Trying to join the map

What is the expected output? What do you see instead?
When I create a sign in the lobby, it says disabled, even though I followed every single step in the setup section.

What version of the product are you using?
Beta 0.5

Do you have an error log of what happened?
This is all I could find in terms of errors: http://www.pastebin.com/UnbiLJZE

Please provide any additional information below.
I tried setting up multiple arenas, both with the same outcome.