Hi Klaus,
Every single delivery sent should be available in the delivery view of the application (even the ones that are part of a recurring delivery). For example here we have 7 deliveries sent from the Happy Birthday recurring delivery of the BIRTHDAY campaign. Each one contains reports specific to this particular delivery.
You can filter the deliveries to display in this node by applying an advanced filter. For example, you can only select deliveries attached to a particular recurring delivery.
Let me know if you have any questions on this.
-Tacia