First I would boot it to see the count down sequence. During that portion of the boot, it should give a key(F1, DEL) to redirect the boot to default to DOS. You should have a good handle on DOS syntax commands. Otherwise you may be in deeper doodoo than you can get out of.
While in DOS you can look at all of the files with the DOS DIR /P command to see all of the directories and files. One thing to be aware of is that the drive labels may be bass-ackward. As in the floppy could be the C:\, the HD could be A:\ and internal Eproms(If any) could be B:\. So, verify which is where and keep this in mind for later copying. Use the change directory command (CD\RAM etc.) to change directories, then you can do the DIR /P command to view the files within that or other directories.
It is advisable to make a written list of all the Directories and files within each directory as it is currently before restoring the system. This will help you verify the contents of each directory and the files each should contain after it is restored.
Our restore disks were not in the proper order to do a direct copy transfer. Some files were in other directories on the restore disk that the tech needed to transfer seperately for some dumb reason(Service monopoly games?). I have recreated our disks so all I need to do is a single copy in DOS to transfer all of the files at once as it should be. Our disks and CenturionI, II and IV controls do not have any features that I have found to do a full restore in one key stroke.
I would still call Milltronics and request their step by step restore procedure for your particular control. I do not know what soft keys may be available that could assist in making this a simpler process. Again, having a hand written recorded hard copy of the current directories containinig any and all files can at least help you compare "what was" to "what is" after a failed attempt.
I know what works on our versions, but do not really want to mislead you into oblivion on a version I am unfamiliar with.
DC