I'm making a little more progress but not much.
I can see where you can alter the network shares in Account Management. There you can actually set the root directory to an NFS share. However, the instructions referenced above for the 323 say you can then assign a folder to be shared and this is what I suspect I need but there is no place I can do this on the 320.
What happens is then that the IP address of the 320 shows up but when I try to access it I can get to the thing called "mnt\hd\hd_a2 but I see no files there. What I really need is to be able to get to the folder of, say, volume_1\action but I don't see anywhere to specify that.
Also, I'm a little confused by the instructions. It says to enter in host the address of the client (or a range but if only one client like a media player, which I'm trying, to do just that) but I'm using the address of the 320 and it then shows up. My media player doesn't have an IP address (it doesn't show up on the network, although it can access the Windows shares on the network just fine) unless there's something I really don't understand here.
Anyone have a clue?