I'm following instructions from a thread I found here, which I've posted
below. I'm having trouble with one step:
Where is the query date field??
In the query that is used as the record source for the report.
Open the report in Design View.
Display the report's property sheet. Click on the Data tab.
The first property is the RecordSource property. If the RecordSource
is a query (as it should be), click on the little button with 3 dots
that appears on that line.
The Query grid will open.
As criteria for the Date field column (I have no way of knowing what
the name of your actual date field is), write:
Between forms!ParamForm!StartDate and forms!ParamForm!EndDate
Save the changes.