Hi,
I talked to Eduardo and the dotlrn-catalog package is now installed and mounted automatically =)
I'm not sure about what courses are you talking about. There is a community (test) which is created automatically each time the code is updated and the database reinstalled. Are you talking about that?
About the likert question, I don't have too much experience with that, but I have just seen the "Final Test" assessment and it has a likert question type, I guess it was you :-p. So I think it works.
Regards