Something is odd about subscriptions and PayPal (at least in sandbox mode). I am running 0.7.1 tests before I updating the live server. The testing cart is a9k.foxycart.com.
I ran two daily subscriptions through today (4/8). The merchant got paid and the buyers show their recurring subscriptions setup. The the cash_ customer is using his paypal balance of $300. The other reader_ is using a creditcard.
Both show in foxycart under subscriptions:
2011-04-09 1d This payment card is about to expire.
PayPayPro IPN doesn't send expiration information, so this doesn't make sense.