Still no fix!  My workaround:  I am creating multiple item receipts as items are received.  Then when I get the bill, I enter that same invoice number and a letter after for each item receipt (i.e. INV1234-A & INV1234-B).  Then when I pay the bill, I check both A & B invoices so the total payment is correct.  I wish they would fix the issue of the POs not tying back anymore, AND most importantly, offer a way to enter a bill for mulitple item receipts.