all that information is for the second edition. the third edition involved a pretty substantial set of internal changes. things were improved in almost every way, but one casualty was much of the platform support in the cpu/terminal kernel. in particular, we don't run on the NeXT boxes any more. we still have the relevant compiler, but i'm afraid getting the kernel working there would involve some pretty substantial kernel programming.
the fourth (current) edition is updated regularly and is available for download from the web site. Vita Nuova sells CDs and printed manuals.
