basic reporting is in the dashboard.
Staff panel -> Dashboard
Your other option is to wait for scottro to update his reports mod.
source1: http://sudobash.net/ostickets-reports(http://sudobash.net/ostickets-reports)
source2: http://www.osticket.com/forums/showthread.php?t=6171&page=19(http://www.osticket.com/forums/showthread.php?t=6171&page=19)