Reg. RFQ and PO reprinting

Hi,

I developed custom Scripts for RFQ and PO. I'm facing one problem, If I make any changes to RFQ or PO, only those changes are printing. I need to get all the details to be printed in the output. Is this possible?

Ex: Suppose if I add Item text to item 00010 only this item is printing even though I've 10 items.

Your suggestions are appreciated.

Thanks,

Bhaskar