Hi Holiday,
When you say "current year data" is now showing up in the historical area - do you mean current year transactions that still have outstanding amounts (current amount is not zero)? Or are the current amounts of the questionable historical transactions = 0 ?
With respect to the aging, I'm sure that you would have checked that not only the month and day of the transactions are correct but also the year. In terms of invoice transactions, are the due dates (as opposed to the invoice dates) also correct ? Some aging is done by Due Date rather than Invoice Date. Is the aging incorrect on both the Inquiry window as well as on the Aged Receivables reports ?
Pete