first, you need a cursor from rw-designer.com. this is because only their cursor packs have .crs files, which this program relies on.
alternatively, you can make one yourself, though its easier to get it from rw-designer.
place the python script in the folder.
open CMD, navigate to the folder and type "python importcursor.py"
if you did everything correctly, the script will run and all you need to do is log out and back in (or restart)