Also, not to interfere with Mike helping you, but I'm pretty sure that after 1.08 you can go straight to the latest build (in this case 737), no need to do 735 and 736 first.
I'm kind of hoping you're right Tomcat - I've re-installed from the initial disk onto a "clean" hard drive. I then tried to overlay/unpack B735 over the top of that, but no startup. Command would not start either from the Matrix startup splash screen or directly from Command.exe.
I'll unpack 1.08 onto the installation now, and give it a run and see what happens.