I cant figure out how to create an invoice and then add payments to it and print another copy of the invoice to send to the clients showing the payments made. How can this be done?

I've got the same problem. I have a client who has made a partial payment on an invoice. How can I send a new invoice that reflects the payment.

Did you geta solution to this? Seems a little odd that you cant edit or send invoices once they are sent. Ive got a client who needs a spelling error changed on the invoice but I cant figure out how to edit and send the invoice again without sending a new slip.

Any Ideas?

Actually I just figured it out or at least a way around not being able to edit sent invoices.

You need to delete the invoice and then make the project/slip (cant recall) active. Then you can change the details ... but not quite sure how this would go for adding payments to the slip etc.

did anyone ever figure this out?

Just found this explanation:
http://www.billings2.com/support/article.php?id=046