Marketpress Features Question: Customer Database and Conditional Emails

Hello WPMU,

We are testing out your Marketpress plugin and a few questions have arisen:

1. Managing customers: I noticed there is no customers tab in the plugin, and I couldn't find where customer records would be managed. Does this appear once orders have been placed?
2. If customer management is included, can we enter fields such as birthday, or our own customizations?
3. Related to #2, we would like to be able to send out emails to customers when they are nearly out of a product. For example, say someone purchased deodorant 4 weeks ago, we'd like to have the system send them a reminder email that they will be needing more soon. Is something like this possible with this system? If not, do you know of any plugins you would recommend that would do this?

Thanks,
Paul