First, under vPlug Server Options, tick CCcam Server Active. Probably can leave CCcam Server Version as 2.3.0. Enter you PC's IP address in CCcam Server IP and enter a spare port number in CCcam Server Port. Save.
Go to Edit Users and add a user name and password. Save.
The above details are those you will put in your C line.
Then Edit Cards. Each card identifies a CAID plus provider(s) you are interested in. Save. After you've entered the card(s) I suggest you 'Select' each card to make sure that the details have stuck properly. I always have trouble with this.
Edit Databases brings up a key editor. If you're familiar with vPlug, you'll recognise this.
That's pretty much it, I think. Let me know how you get on.