modify invoices and statements to show po numbers

[Diane]

Need to show purchase order numbers on both the invoices and the statements.
How do I modify or even create a new invoice and statement

 

[Kaliope]

You can see if any of the invoices or billing statements available for free
here will fit what you need, or modify one if you need to (Office templates
website):

http://office.microsoft.com/en-us/templates/FX100595491033.aspx?pid=CL100632981033