Lost my data from april 20, 2008 to date

I have had difficulty with back up to a floppy recently as it tells me "source file" cannot be found. I input my checks on December 16th and planned to reconcile when my statement arrived, which occurred yesterday. When I went to reconcile, all my data from 4/20/08 to date is missing.

I have searched my entire computer and cannot locate the files with data. If I cannot restore somehow, I will have no choice but to enter 8 months of data.

If you can help me, I would really appreciate it.

Thank you and Happy New Year.

donna