WD My Book showing no files

My WD My Book has backed up files on it.  My computer broke and needed to have the hard drive replaced.  When I set up the My Book again, it shows in the Windows Explorer and Disk Management with almost 1T of data.  But when I try to retrieve files in the software, it shows the files, but they are all empty.  Please help!

You can copy and paste the data out of the hard drive. The WD SmartWare backup will be located in a folder called Smartware.swstor, and that folder will hold another folder with the name of your computer before it was repaired.