Missing XP partition

It was a dual boot system with Windows 98SE and Windows XP on
two partitions on one hard drive. Both partitions were ok and could
be viewed from an Emergency Windows 98SE Boot disk. Scan disk
said it could fix the FAT errors on C:\ by using the second copy
of the FAT table. I did that. Now there is no D: drive on that
hard drive. Windows 98se is repaired and working. "My computer" does
not show a D: drive that would contain my Windows XP installation
and all the files. Even from Dos, the partition and files for XP are
not listed.
Using a program called Partition Recovery, It shows the C:\ partition
at 9 gig and the rest of the drive as unallocated. The program says
there are no partitions in the unallocated part but there are logical
drives that may have partitions be recovered if I change the unallocated
part to a logical extension of C:. I'm not sure about doing this. I really
would hate to lose the info that is on the missing D: partition.
Are there other, better, ways to salvage the partition and/or info
on it...
Any help greatly appreciated...