I wish you luck that someone has a backup to share.
Possibly you have a hard copy from the OEM?
If not, it is not as painful as one might think to manually re-setup a machine.
The hardest part will be to reset the options. But if you happen to have the control data sheet that solves that item.
From there its relatively straight forward. Maybe 6 to 8 hours of gathering machine info and setting the parameters.
The truly time consuming part above and beyond the above, would be rebuilding the Conversational library if you even used that portion.