Comodo Pro and Network Magic

I was refered to the Comodo forum when my use of Network Magic (ver. 4.9.8225.0-pure0) would not allow me to send and receive files between my three home computers. The description of what to do to fix this does not use the same terminology that I find in my new version (3.5.54375.427) of Comodo.
I’m stuck. Can anyone help? (:SAD)