Bill, here's how I do it:
Go to Reports > Awards > Awards > DXCC
select the band > next
print unworked entities yes/no as desired > next
tag marking submitted cards leave blank > next
select field to print in optional column - do nothing > next
initial select criteria, this is where you will do your date...click the expression builder button on the right side
scroll down in the expression builder screen until you find the field "QSO Date". Now go to the operator drop down and select "greater than or equal", and where it says "value" enter your start date. Click "OK"
click finish
leave "award value" > ok
leave "QSL_RCVD $ "SFRWU""
select print.
73 Doug W5GA
73 Doug W5GA