Now that I have my new page for Commodore 128 stuff, I decided to make a how-to for using CP/M on the x128 emulator. It has taken me a while, and I'll probably add more to it later, but the first draft is now up on the site. If you are interested in the CP/M operating system on the C128 then take a look. (And even though it is specifically for the x128 emulator, the instructions should work on a real C128 with only minor tweaks.)
Enjoy!