NeSmartware wants to backup to wrong drive, how to change it

Well the backup says complete, and it did not backup my test document.  I have never been able to get this to work, and I have no idea why.  I am using the latest update.  I have been using it like a big flash drive.  I guess I will have to use a 3rd party software to get a proper backup.  Thanks anyway for trying to help.  I do appreciate it.