Sorry to get back to you only now.
That version is for Kindle 2 (?), DX(G) and Kindle 3. Somewhere in the thread, somebody reported success with a Kindle 4, too, I think - but I'm not sure.
You would have to experiment with this:
https://www.mobileread.com/forums/sho...d.php?t=228167 - but I think there's still a bug somewhere hiding in that code base.
You should certainly not run x11vnc and Xvnc. Read up what they are for - and start with one of them.
When you run displays on :1 on the desktop (or on -rfbport 5901, which is about the same), you need to connect to 192.168.15.2:1 (note the ":1" here, too) from the Kindle.