Jamok

On the issue of not enchanting TC items, if you add looting to the tools with lapis, it should then let you repair and add enchants to the items with the enchanting table.. You may be able to delete your character file from the world folder. You will lose all the items you have on your character, but you may be able to connect. I have done this a few times when I get odd stuff happen and it only effects 1 person.

Are you putting in your Minecraft log in info correct?

Is there a way for us to add recipes to NEI?

I run a few different versions of Minecraft. I run them on a pc that is just for that. I have a different folder for each flavor and will run the one we want at that time. Have you tried creating a new folder and dropping the files from the download and running it from there?