It worked !
Situation: Current server [1] with Pata drive would also become new server with Promise SATA card and SATA drive.
I used an even older computer [2] to install the Promise Card and SATA drive. Installed SME7.5.1 on it and did the Affa trick described
HEREInstalled the most critical rpm's, squeezeboxserver, gallery2, tof4-brt and some admin tools, all via SSH on the [2]
I had to hand-copy the /opt directory from the old server
I did not want to sort out the [include] function of Affa.
After the final affa --run prodserv I switched off both [1] and [2], moved the SATA drive from [2] to [1], booted up and it almost worked instantly.
I had to sort out which network card was internal and which one is external, but luckily I wrote down these settings from the original [1].
As I am typing this, I'm connected again to the internet on [1] with the SATA drive.
I do have to figure out why Gallery 2 is not starting via the link I previously used, but this is a minor
Thanks all for the help!!