Well let's see, you have:
- Run faq_install.php
- Placed faq.php in your /admin/ directory
- Applied the updates from Bira
- Fixed what Fonz brought up
I am not sure why in the world you are getting an internal server error. It does not make too much sense on why you are getting it unless something other than the above have been modified on accident.
Where is Sinecure when you really! need him

- I am sure he could help both of us out.