Kiwi is going to play in a tournament in Bologna next weekend (Sep 24-25) so a couple of weeks ago I decided to work a little on it and to bring out a new version.
There are a couple of very important bug fixes here, so I recommend to replace version 0.6a with this one wherever possible.
Unfortunately I've had some troubles with my internet connection and the page you'll see is only temporary. Also, there's no opening book yet. I expect to be able to connect again from a better location within a few hours, and to fix both the page and the book problem.
I would like to thank Heinz van Kempen for the invaluable help he gave me in choosing the best settings for this version... thank you Heinz!
On the other hand, if Kiwi sucks you know who's to blame now! 
P.S. Download is from the usual page, click on the "WWW" button below!
But just in case, I kept the test code in hash.cxx just for this version... it will be removed from the next one! Anyway, the *huge* bug was there, though you may find others by diff'ing with 0.6a... but they'll be only "big"!