The latest beta is available in the same place with the same password on the zip file. I am classing this as a release candidate because it is now playing well without any major or minor problems. I have not played enough to guarantee that evey feature operates fully (this mainly means promotion).
I hope to release the game on clickgamer in around 1 week if I can get the manual updated & other admin stuff finished.
update: getting on fine with the manual updates. One small bug found by a 'tester' of Beta 4. Key clicks were so quiet they could not be heard.