The Stella 8 program is installed without any problems and it runs well accept for one fundamental ting; the windows used to change the value in the model is unvisible. So it is not usefull for to making a new model or to modify old ones. It can be used to run models constructed on a Winodows computer and then it works perfect. I vote for a broze medal.
I also tested Stella 5, and it behave in exactly the same manner.