Second Drive Not Recognized in Win98

I am trying to help a friend get her data from an old hard drive after her
motherboard died. This drive is from a 6-7 year old Gateway PC and it has the
older parallel connector, so I tried to add it as a second drive in an older
Dell Dimension XPS Pro PC running Windows 98 SE. I attached the second drive
as a slave and the BIOS recognizes it, but I cannot see it in Windows. I've
read other posts about needing to format the drive, but since this drive has
data on it, I cannot reformat it. I also tried attaching it as the primary
and only drive, but the system wouldn't boot. I even applied an update to the
BIOS thinking it may be a drive capacity issue since the second one is a 40
GB drive. That didn't have any impact either.

Is there a way to get Windows 98 to recognize this drive so I can copy the
data off of it for her? Any suggestions on the best way to get the data off
her drive would be appreciated.

Thanks.

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Peggy A.
In A Chord Web Design and Consulting