Odd Dates on Backup Files

Recently bought and installed True Image and am quite liking it. I have it set to do an incremental data backup each week as well as a disk image. For three weeks those have worked fine. The backups are being done to a NAS device.

When I go into the NAS and look at the backup files, all are showing with odd dates. They are 6 years and 51 weeks out of sequence. For example, the backups that were done today, Jan 27, show a date of 2/3/2007. The backups that were done last week, Jan 20, show a date of 1/27/2007.

What's happening?

Thanks.