At Crime Scene, Sosa Hears Mostly Cheers
Sammy Sosa's use of cork-filled bat has cast pall over his reputation and is subject of inquiry, but fans show support; Major League Baseball officials confiscated the Chicago Cubs slugger's 76 remaining bats after game against Tampa Bay Devil Rays, but executive vice president Sandy Alderson says examination revealed that none contained cork; says Bob Watson, baseball's vice president for on-field affairs, will determine what penalties to levy; Sosa is given standing ovation from majority of Chicago Cubs fans when he appears on field for game in which Cubs lose to Tampa Bay, 5-2; Sosa continues to insist that he used bat by mistake, and says he understands he must take the blame but is dismayed at news coverage; will likely play in upcoming series against New York Yankees; several officials, players and others comment (M)