A gentle reminder to OnePass customers who might be peeved by the program’s recent reduction of elite-qualifying mileage on economy-class fares: You can still earn full elite miles for all economy-class fares when booking travel at continental.com throughout 2004. And to sweeten the deal, members who use online check-in at continental.com before March 31 will be automatically entered in the “Check In, Chill Out Sweepstakes,” with a chance to earn a first-class vacation to Maui.