The server port is the map download port, not the connection port; this is the connection port + 10, hence the default is 23083.
Then you enter the (case sensitive) filename of the map on the server, then for the path you put the path you want to save to, and the filename.
Example settings:
IP: 72.232.225.66
Port: 23083
Map to download: tw_windmill.PMS
Path to save to: C:\Soldat\tw_windmill.PMS