Q: How do I get a report of all advanced Deposits for future reservations?
A: You can do this from the Arrivals tab view. Add the "Deposits" field if needed (through the Options on that tab), and put in a date range that would be far enough to include all future reservations made.
Warning: Don't add the "Auto-Charges" or "Auto-Balance" fields unless absolutely necessary, and assuming you have auto-rates set up correctly. This can result in an apparent lock-up of the program if it takes a long time to calculate the rates for all reservations shown.