I've seen that when I create an invoice I've "aging" field in invoices tables
What does that mean 0-14??
Another question:
Using "payments" area of the menu I can set when the payment of a specified invoice is done.... but is it possible set the date of payment of each invoice??
Example: invoice date 2010-03-10 and payment 2010-04-10
@il_dandi - you could create a custom field called payment date and manually enter whatever date you want to be printed on the invoice in this field - or edit the invoice template and create some php/smarty code so that payment = invoice date + x many days etc..