I'm having some trouble getting this plugin to work at all on CB 1597. It correctly states that TerrianControl v1.2.11 is enabled, I can get up to step 2 on the install guide, but my server does not recognize any "/tc" commands required for step 3 (specifically it says "unknown command"). I disabled all of the rest my plugins (by physically removing them and their folders from my servers file structure) and still the same behavior. Tried it on a freshly DL'ed server jar as well and still no good. Am I missing something here?

The only thing I can think of is that this machine only has java 7 x64 on it. Is there a version requirement to run this? Anything I can provide you to help figure this out?

Paste server log please.

This may not be that helpful, but here goes:

2012-01-04 09:23:46 [INFO] Starting minecraft server version 1.0.1
2012-01-04 09:23:46 [INFO] Loading properties
2012-01-04 09:23:46 [INFO] Starting Minecraft server on *:25565
2012-01-04 09:23:46 [INFO] This server is running Craftbukkit version git-Bukkit-1.0.1-R1-b1597jnks (MC: 1.0.1) (Implementing API version 1.0.1-R1)
2012-01-04 09:23:47 [INFO] TerrainControl v1.2.11 is now enabled
2012-01-04 09:23:47 [INFO] Preparing level "World One"
2012-01-04 09:23:47 [INFO] Default game type: 1
2012-01-04 09:23:47 [INFO] Preparing start region for level 0 (Seed: 407046695)
2012-01-04 09:23:47 [INFO] Preparing start region for level 1 (Seed: 407046695)
2012-01-04 09:23:48 [INFO] Preparing spawn area: 52%
2012-01-04 09:23:48 [INFO] Preparing start region for level 2 (Seed: 407046695)
2012-01-04 09:23:48 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-01-04 09:23:48 [INFO] Done (0.181s)! For help, type "help" or "?"

My user name is written in the OPS.txt, yes. But I'm running the command from the console. Should I be running it logged into the server in the minecraft client?

Update: Just tested it within the client connected to the server and it isn't recognized.

Hmm an you are OP ?

Actually just noticed something else - its odd but may not be a problem. When I stop the server it gives me an odd message "TerrainControl v1.2.11 can`t be disabled".

Log below:
2012-01-04 09:23:46 [INFO] Starting minecraft server version 1.0.1
2012-01-04 09:23:46 [INFO] Loading properties
2012-01-04 09:23:46 [INFO] Starting Minecraft server on *:25565
2012-01-04 09:23:46 [INFO] This server is running Craftbukkit version git-Bukkit-1.0.1-R1-b1597jnks (MC: 1.0.1) (Implementing API version 1.0.1-R1)
2012-01-04 09:23:47 [INFO] TerrainControl v1.2.11 is now enabled
2012-01-04 09:23:47 [INFO] Preparing level "World One"
2012-01-04 09:23:47 [INFO] Default game type: 1
2012-01-04 09:23:47 [INFO] Preparing start region for level 0 (Seed: 407046695)
2012-01-04 09:23:47 [INFO] Preparing start region for level 1 (Seed: 407046695)
2012-01-04 09:23:48 [INFO] Preparing spawn area: 52%
2012-01-04 09:23:48 [INFO] Preparing start region for level 2 (Seed: 407046695)
2012-01-04 09:23:48 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-01-04 09:23:48 [INFO] Done (0.181s)! For help, type "help" or "?"
2012-01-04 09:24:09 [INFO] Unknown command. Type "help" for help.
2012-01-04 09:28:29 [INFO] Unknown command. Type "help" for help.
2012-01-04 11:17:33 [INFO] CONSOLE: Stopping the server..
2012-01-04 11:17:33 [INFO] Stopping server
2012-01-04 11:17:33 [INFO] TerrainControl v1.2.11 can`t be disabled
2012-01-04 11:17:33 [INFO] Saving chunks
2012-01-04 11:17:33 [INFO] Stopping server
2012-01-04 11:17:33 [INFO] Saving chunks
2012-01-04 11:17:54 [INFO] Starting minecraft server version 1.0.1
2012-01-04 11:17:54 [INFO] Loading properties
2012-01-04 11:17:54 [INFO] Starting Minecraft server on *:25565
2012-01-04 11:17:54 [INFO] This server is running Craftbukkit version git-Bukkit-1.0.1-R1-b1597jnks (MC: 1.0.1) (Implementing API version 1.0.1-R1)
2012-01-04 11:17:54 [INFO] TerrainControl v1.2.11 is now enabled
2012-01-04 11:17:54 [INFO] Preparing level "World One"
2012-01-04 11:17:54 [INFO] Default game type: 1
2012-01-04 11:17:54 [INFO] Preparing start region for level 0 (Seed: 407046695)
2012-01-04 11:17:55 [INFO] Preparing start region for level 1 (Seed: 407046695)
2012-01-04 11:17:55 [INFO] Preparing start region for level 2 (Seed: 407046695)
2012-01-04 11:17:55 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-01-04 11:17:55 [INFO] Done (0.110s)! For help, type "help" or "?"
2012-01-04 11:18:01 [INFO] Unknown command. Type "help" for help.

The unknown commands are where I tried /tc check and /tc help.

Hmm you write this command in console with "/" ?

Tried it both ways in desperation - I think I solved it though, its working now.

I started noticing a few other plugins I tested were not working correctly too so I uninstalled and reinstalled java 7 x64.
As it turns out, the server was using an old beta version of java 7. I've replaced it with the most recent version and everything works fine.

Sorry to cry wolf there! And thanks for your help!