Issues with partial payment for donations

Hello -

In testing what I think you're referring to as the pay later option, I ran into several problems.

1) I had no difficulty in making an initial partial payment (e.g., $15 out of $200). However, the UI is confusing in that it indicates a payment of $200: http://screencast.com/t/soldeNuVQPI

2) If I want to make a subsequent payment, there are two issues:
A) The payment field is in a different area of the screen from the "Submit a Payment" section. This, I believe, will be confusing to the user.
B) When I make a subsequent payment (say, of $20), not only does the amount owed not update correctly but the next payment appears to be a separate payment in addition to the $200 listed. http://screencast.com/t/OO2Vbppe0D