Just spoke with Dir of Admissions who is very nice and happy to answer any questions. He said that the Coverdell Fellowships have already been awarded - so if it wasn't in your letter, you didn't get it. He also said they were not giving out any graduate assistantships with offers of admission this year. if you enroll, however, you may see assistantships that are available in other departments and apply for them. However, he emphasized that the availability of these assistants and TA positions varies by quarter, and that they are competitive.
Good luck to all who haven't heard yet or who are figuring out their school choices.