Sign up for a forum account over at
www.projecteq.net. That way you get access to more forums, including the "Database Releases" forum where fathernitwit has a post detailing how to bring the Kunark DB up-to-date with the latest build.
However, as Belfedia mentioned, there seem to be a lot of pretty major problems with that particular build that have yet to be worked out. Your best bet is to stick with an older build for the time being.