Sage : Purchase Payments relating to POs

Hi,

I am trying to write a report that shows our Payments made by related Nominal Code.

The Purchase Payments (PP) are however stored with a Nominal Code relating to the bank the money is coming out of.

So I need to relate these PPs to the corresponding Purchase Order Items (which have the correct Nominal Codes against them)

I can happily do a report of Purchase Orders against Nominal Code but as the Payments are not made at the same time the PO is rasied, this is not what I want.

Can anyone help?

Thanks, Steve.