I want my guests to have the option of paying either the full price or deposit price for their tour. When the reservation is made and it is time for payment, two PayPal buttons appear. One says to "Pay Full Price" and the other says "Pay Deposit Price".

The problem is that for "Pay Full Price", the deposit price AND supplement are being added to the full price for payment. That's not right. Please see screenshot. How can I have the "Pay Full Price" button not add the deposit.

If you can show me where to go to change the code that adds the deposit price to the full price, I'd appreciate it. I tried changing something in the Paypal buttons.php file but it didn't work.

Hello, there is file with small fix. I hope it will help you. I don't know if current functionality is feature or bug.
Destination of file (unpacked) is components/com_booking/views/payments/paypal (it is relative path from Joomla's root).

Thanks a lot. That worked. You are veryy helpful. I have one more question with regards to this. How can I have the automated email sent to the customer state the balance that is left to be paid if they pay a deposit?

Hello, I'm not sure if I understand exactly.
You want to recommend customer after pay deposit to pay full in particular time?
Component unfortunately hasn't this function.

Below is the email that customers receive. The text in red is what I want included. Can I get that with your component?

Dear Customer,

Your reservation was successfully saved.

Tour: Bob Marley Nine Miles / 2 persons
Reservation Date: 2012-04-21
Quantity: 1
Price: USD160.00
Deposit: USD80.00
Full Price: USD160.00
Full Deposit: USD80.00
Amount Owing: USD80

Customer: Roger Kerr
Address:
Company:
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Telephone:
Fax:

Best regards.

This E-mail was generated automatically.