hi,
use "print detail" flag on Aged AP Report.
Financials\Management\Financials\reports\Aged Account Payable
nice video here (on NAV 4)
is not full compliant with a standard ERP Detaileds AP report, but can be simply customized.
en.wikibooks.org/.../Aged_Detail
"This report displays all the transactions for a single supplier. At the top, it lists the supplier name and number. Thereafter, there is one line for each invoice, check or adjustment. Each line contains the following fields"