Here is a copy of the latest version of the program, you can download it, then just over-write all of the older files from the previous download. That will make all of the creatures ready to go by just hitting the play button. (If you think the the speed setting is not quite right, you can still modify it).

As far as the tutorial goes, I have included the latest version with this zip file, but you will not see much new in it, as I have so far been working on it based on question that people ask regarding how to do particular things.