eBid send sellers an invoice every month, and they are found here: http://uk.ebid.net/perl/account.cgi?mo=account-invoices
Clicking on the invoice number allows you to do two things
1) View previous or next months
2) Resend invoice
Could a 3rd option be added that simply allows a user to print the invoice.
Even better could you add a 4th option too that allows a user to download the invoice or even a selection of invoices determined by a from and to date as a user needs