ANAHEIM, Calif. - Orioles executives Jim Beattie and Mike Flanagan spent much of their time yesterday with their baseball people discussing how much to offer last year's first-round draft pick Adam Loewen. Those negotiations could go right up to Tuesday's midnight deadline, team officials said. If the Orioles don't sign Loewen, a 6-foot-6 left-hander from Chipola Junior College in Marianna, Fla., he'll go back into the June 3 draft, and the club will receive a supplemental round pick, No. 37 overall.