It's now on the "other" hard drive in my laptop. I was amazed: it took under half an hour from start to "up and running". That was as a clean install to a brand new 80GB drive. Everything worked straight off.
What amazed me even more was that it found drivers for the "IBM" buttons, and for the fingerprint reader. The only thing it couldn't cope with was the Jeppesen data card writer for the Garmin GNS430. I think that needs a driver from Jepp.
Yes, it looks quite a lot like Vista. The difference is, it works.