I would like to repeat Martin's warning: do NOT install a beta testing version of Moodle on a production site.
Your testing will be very helpful, please create a bug report in the bug tracker for any problem that you find.
Quiz
What would be the problem if we use Quiz 1.5.3 in Moodle 1.6?
Eztabaida hau blokeatu da eta beraz aurrerantzean ezingo duzu bertan erantzun.