The announced attendance for yesterday's regular-season opener at Oriole Park at Camden Yards was 44,568, but that doesn't mean there were any tickets still available. The game really was a sellout and virtually all of the 48,041 available seats were filled. Under American League rules, only paid attendance is announced. The number was less than capacity because of the large number of complimentary tickets given to Opening Week sponsors and others involved in the completion of the park. There also were two sections used for an auxiliary press box.