Tech-in-a-Box backup partition not found

Did a factory restore on my system but my back-up partition had to be created manually.

Tech-in-a-box, which uses WindowsXP help and system restore, is unable to find my backup partition when starting (error msg). I made sure the drive letter was the same as originally (D:/).

How can I point this program to my backup partition for saving back-ups, etc.?