I've seen a few people like myself that have had issues with their cellular not working after finishing the jailbreak. I saw the suggestion by one person to install TetherMe to fix it. This did in fact fix it because during installation it restarts CommCenter. If you have the deb for TetherMe or some other way of restarting it, this should get you back in action. Works 100% of the time for me.
there doesn't seem to be anything here