Sorry for the slow response time over christmas/new year

With RSVP Pro you can create a special latest instance of all events that a user it attending - you can also do the same with a jevents menu item.

There is no downloadable receipt per se but there is a payment notification email that is sent out in which you can include all the details of the event and payments.

Also you can configure PDF event tickets - so there is no reason why you couldn't customise these to represent a downloadable receipt.

Does that make sense?