Thanks for another post.
I think you're looking for permission to use a date range (1/1/09...1/15/09) AND a second find criteria like "shipped".
Go ahead, FMP won't mind. Enter find mode, type in multiple criteria and hit "find" once. For the date range, the three "..." are the key to looking across the range of dates.
Is this what you were after or did I miss the point?
(If I missed it, then you're probably looking for a sub-summary report based on a found set.)
Let me know...