A clean titanium install should have all of the correct files because these zones work just fine on P99 and there are no changes required to highpass files for the clients to play there.
As for the DB entries, I have no idea as I have never tried it out on my test server.
edit: A quick DB query shows highpass, highkeep as the correct zones on my server with the new highpasskeep locked with a min status of 80 in the default 1751 DB. They are both expansion 1 and zoneidnumber = 5 and 6
Code:
select * from zone where long_name like '%high%';