Also, (I'm a newbie as you can tell) the cnet readme says to put the cnet.device in Devs:Networks/cnet.device. I don't have a Devs partition. I have a System partition with a Devs drawer. Should I put the device in System:Devs/Networks/cnet.device? I would have to add a networks drawer.
DEVS: is an assign to your system partition Devs-directory. So you got it right, you should put it as System:Devs/Networks/cnet.device (which is identical to DEVS:Networks/cnet.device).
Assigns are sort of a "virtual" partitions inside the real partitions, they make accessing files/dirs inside long paths much faster and easier.
For example you can make MY: point to work:my/stuff/is/in/here/inside/long/path/
Assign MY: work:my/stuff/is/in/here/inside/long/path
[you can put commands like this into s:user-startup file, to make them permanent]
Now you can access files inside this path by just looking into MY:-assign, for example:
dir MY:
ed MY:myfile.txt