I got an invite during the last round of beta testing but when I try to log in, it says my information is incorrect. Do I need a new invite to play or something?

Sorry, you are asking in the wrong forum as this is not the place to ask. As for your question, I do believe you have to have a new invite.

http://www.gamesas.com/topic/1483416-dedicated-eso-beta-discussion-thread/