sure, but be warned that you will only manage a snowaccumulation of about 3-4cm with it.
short desription of my experiences:
the activity which has the biggest effect, when you work with this script is to subdivide the object you make the snow on before you operate the script - 20-40 subdiv.are good working values.
for me the values in the script didn`t have any influence on the snow, out of the blurry ones. in the end i left them on default.
http://www.scriptspot.com/3ds-max/snowmaker