The advice he's given so far is probably the most useful -- look for accidental/old copies kept elsewhere. Complete, organized data from an old copy is probably still better than the disorganized, fragmentary data you'd get from a disk trawl, newer or not...
Without more detailed information on his system and situation, any
detailed advice we give is likely to be counterproductive.
You can't USB-boot a virtual server, for instance, so that's not good generic advice... magicrescue can't find datafiles it can't recognize, for another. And so forth. Scott did ask for more info and we have no reply as of yet...