OK, so I am using blojsom and so far everything seems to be fine, except that even though I have enabled comment and trackback moderation in the blog.properties file, I am able to post comments and have them appear immediately. I was expecting the blog owner to be notified and having to accept or reject the comment, but this isn't the case, apparently.
Update: there were some more steps involved, but now everything seems to work as expected :).
