SME 8.2 server of a friend who lives miles away. Finally go him to send the server to me to upgrade it! Since arriving things have gone down hill steadily

Followed instructions to back to USB and do a restore to 9.2, all seemed to go well and was happy that it reached 100% and completed. It was then that I noticed that one of the disk in the mirror set had died.
Replaced both disks with new, and installed a clean 9.2, did a restore from USB, of which that seemed to complete happily. However I find now that I have lost the users, and the configuration! Data seems to have restored, so have the user directories and email.
Had to set the server name and password, as well as the two network cards, then went into the console and tried and restore from there, same end result. I am now at a total loss as to what to do. Annoyingly I do not have any of the configuration details at all.
Any help greatly appreciated.
Paul.