Recently, one my client requested such 'preview form', and I produced them. Make form scrollable and with white background color.
Sorry, if it looks too simple :-).

>Hi Ed,
>
>I have been thinking about a form that looks like the report. This is a small business where they only want a simple way to record and print invoices. The user is the owners wife and wants it simple...
>
>Thanks
>
>>>I have a report that is a customer invoice. The user wants to preview the report then edit or add comments to a memo field before printing. What is a good strategy to use for this?
>>>
>>>Thanks
>>
>>Obviously, preview window is not for editing. You can customize preview toolbar, removing print button, then in your code (after preview is closed) bring up some dialog with editbox to view/edit memo field (hopefully, you use one parent record and memo is part of it) and 'Print' button there. Hopefully, your users will accept it.