This is going in the wrong direction.  I am not looking at purchase orders and trying to determine which bills are linked to it.  I am looking at BILLS, and trying to see what purchase order (if any) they are linked to.  

The other replies seemed to imply that you could group bills in the report in such a way that they showed which purchase order they were linked to.  But it was unclear if that was based on date or amount in a way that I cannot use in my setup.  Can you comment on that?

Is there any way to work with one support agent?  If I ask a question about a response but the answer comes from a new agent it shifts the conversation each time.