James,
Do you mean display the most recent dated records first? If yes:
If the form's recordsource is a query, then open the query in design view
and set the sorting on the date field to descending;
If the form's recordsource is directly the table, then open the form
indesign view, select the form object, display properties, and on the Data
tab set the Order By property to:
fldDateUsed DESC
HTH,
Nikos