Casper7526, an administrator at the official ComputerCraft site has created a port of CC for 1.1. Bukkit ports are there too. This works perfectly with tekkit 2.1.1, and is a must for the modern tekkitor.
Download the bukkit port for the server and the client for your.... well... client.
Be sure to delete the old computercraft folder inside the mods folder and change the configs. I found block ID 252 to work just fine.
I'm gon link u up, fool http://www.computercraft.info/forums2/index.php?/topic/612-computercraft-131-for-minecraft-11-backport/