Hi Jörg
I have the same issue as you, my original drive was a flash card and I believe it was a Windows enterprise build. To cut a long story short, I fitted a SATA drive in as this had the two SATA cables which originally went onto a sub board which holds the flash card.
I tried to install a fresh windows xp onto the SATA drive, this worked but I had a couple of issues with hardware, mainly drivers. I have this link for the complete drive I am sure I tried the NT version but it didn't work. Believe the other one is a backup using a .rib format?
Spend so much time trying to get this to work, but at the moment its going in the recycling.
Any thoughts?
Regards
Paul