Thanks for responding to my question!

I never deleted anything and always backed-up. However, when I restored all the data back into Outlook from the device, these six months were missing. I have it set to back-up automatically when connected, so after most of the data was restored, it was backed-up. Therefore, I'm thinking the back-up is of the newly restored data, minus those 6 months. But how do I know if it's still on my PC somewhere? I know you can restore everything, but would it retrieve the data from the most recent back-up, which didn't have Sept 08- Mar 09? And I can't open the .stg back-up file, so I'm not sure if I can check to see if the data is still there. Any ideas?