KawaiK3Zone

As I recall, it was pretty easy, I think I unzipped the editor to a  
folder in the folder that Steem considers to be its hard drive. ST  
apps run either in a high res mode or a low res mode and will  
complain if you are in the wrong mode. Make sure you set up one of  
the serial ports in STeem as a MIDI port (it is in the preferences).  
Double click on the .PRG file for the Steem editor, and you should be  
ready to go. Of course, set your K3 send and recieve MIDI channels to  
1 for simplicity sake, make sure that Master Function 42, 44, and 45  
to the maximum setting (this depends on the OS version of you K3.  I  
haven't used Steem in a while, but post a description of any errors  
you get and i 'll try to help you out. Also, try the Atari-Midi group:

http://groups.yahoo.com/group/atari-midi

probably the best resource for using STeeM Engine.

The K3 is a great synth, actually. Pawn shops never pay as much as  
you can get on eBay or Craigslist.

Joel.