Ok this is odd: on their maps each computer states the other computer name cannot be put on the map and each states that the other computer is a media player.
I’m not sure what you are talking about with maps. Are you trying to map the drive?
You should be able to go to Computer on the Start Menu, then on the left hand side tree, scroll down to Network, expand it, then expand the other computer to see its drives and folders that you have shared. Make sure you enable file sharing and set the permissions to enable everybody to have full control first, or there won’t be anything on the other computer for you to see.