Not enough information to determine your issue. You have somehow restored back to Vista... clean install? But you want to restore your files from where... a Windows 7 Backup? That won't work. No way around it that I know of... you may be able to access the files somehow.. if you can find a program or hack that can read the Windows Backup Files properly.. you could maybe extract with seperate software. I don't have enough information.
When did you perform the backups and under what OS (Vista or 7)?
You are trying to restore the backups to Vista?
Are you sure the backups arent corrupt or done under 7. The backup changed in 7 so its not going to work if it was made in 7.