You'll need to tell us that and what the OS of the system you made them with so we can attempt to help you recover the data.
Of course if you had encrypted files and used the Backup Utility in XP and are trying to recover them in Windows 7 then you really have a problem as Windows Backup isn't compatible between the two OS's and you'll need to load some form of XP onto a system to perform the recovery.
Here it all depends on how you made the backup.
You'll need to tell us that and what the OS of the system you made them with so we can attempt to help you recover the data.
Of course if you had encrypted files and used the Backup Utility in XP and are trying to recover them in Windows 7 then you really have a problem as Windows Backup isn't compatible between the two OS's and you'll need to load some form of XP onto a system to perform the recovery.
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