Thanks for the youtube video.
As for the pst backup problem. That is odd. I haven't come across this issue yet. But this would be a big flaw. These are pst's that are currently in use in Office 2007? Because Gotcha should find them in the registry. I'm wondering if it could possibly be a language thing causing this?
If you see this again... can you check this area of your registry and let me know if it is where your office profiles are located for Office 2007:
HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles
If I remember correctly in Office 2013 the profiles are located:
I have come across an issue in the past if I use the move function it caused the pst files to be moved by the Documents portion of Backup/Restore before the Office portion. Which was causing problems. But I'm pretty sure I have fixed that by moving the Documents processing after OfficePST processing.
Please do come back if you are still having the problem so we can troubleshoot some more.