file and setting wizard

RAM went bad, corrupted the OS. I could only get all my files/folders setting
using the file and setting transferred wizard on safe mode. Backed it on to a
Seagate Free agent USB. Read about first and follow instruction on how to for
the file and setting wizard. The OS was MS Media, install Win XP Home ed. Now
ready to install my files and setting getting error:
The location that you specified does not contain stored information. Please
type a valid folder path into the edit box.

If you entered a path to a folder on a removable disk, the disk must be in
the drive.

Install XP did all updates. I have not change any setting on the backup
files. I can see the files in the storage USB, it has the .dat extension. Can
anyone please advise on how to retrieve all my file and setting. Read a post
about Migwiz.exe file, but have no idea what version it was on the
corrupted OS or on the new install?
Please advise
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midsail