rsnapshot overwriting snapshots?

I have been successfully(or so I thought) using rsnapshot at the company I work for since the begining July 2011.

My backup schedule is 12:00 PM and 6:00 PM every weekday and it saves everything for 6 months. I only have to go back every once in a while to get files so I am not sure when this started, but I believe it happened within the last two months(thinking maybe the 6 month mark??). I am absolutely sure it was working correctly towards the end of last year.

What is happening is that if I go to my snapshot folder all of the backups are for the 12:00 PM backup. I am still getting emails that it is backing up at the 6:00 PM time, but that time is not shown on any of the timestamps in the snapshot folder.

Is there a setting that I may need to change in the config files?

Here is the pic of my snapshot folder.


Any ideas would be greatly appreciated. FYI I have Radiator 4.2.17 and rsnapshot v2.2 and didnt plan on upgrading either to the newest if I didnt have too as I would fear losing all my backups.

EDIT: ReadyNAS 2100
Thanks!!
Kyle