thanks a lot for your detailed answer. Asking Sasha Buzko was my first
idea as well. Since I couldn't believe that a program can disappear from
the internet I thought someone reading this mailing list should still
have a working version. Obviously, I was wrong.
thank you for your answer. The tutorial is not accessible from the
ambermd.org homepage. Nevertheless, searching for Amber and Sirius in
google gives this page as first hit:
http://ambermd.org/tutorials/basic/tutorial6/ .