Rich,
If you run the table (or open it in SQL), you'll see that you have several key fields on the table. Original Amount, Remaining Amount, Due Date, Posting Date, Vendor No., etc.
You will need something to sort these into aging buckets by date, which can be accomplished by a SQL function or two.
Finally, there is some documentation and training which you should have available if you are current on your Software Upgrades contract with Microsoft. This will be available to you under CustomerSource. The ID that MS refers to is most often your telephone number with area code (10 digits).
Call customer service if you need further assistance.
Good luck.
-bob-