The Red Sox are the team's rival, of course they're going to get booed. An apology? Are you kidding? Nobody deserves an apology. The fans paid hundreds of dollars for the tickets to see the all star game in their hometown ballpark, they can chant whatever they want as long as it's not completely out of hand.
Papelbon made an *** of himself in front of the whole media and the whole country. His comments were completely out of hand and he's running his mouth without thinking. He is a jerk and deserves to get booed for the out of hand things he said, especially since he indirectly insulted Mariano Rivera, who not only is the greatest closer of all time, but having a BETTER SEASON than him!
Varitek did not deserve to be at the all star game either. Statistically he is the worst catcher offensively in all of major league baseball and is slightly above average defensively at best.
Terry Francona and JD Drew on the other hand handeled themselves well. They did what had to be done and in a classy way. The Yankees fans were cheering Drew when he hit a HR and Francona's moves to classily get Yankees players ovations.
What you need to do, is grow up. The same would have happened anywhere for any fans of any rival team. The Cubs would have booed the White Sox, the Phillies the Mets, etc. The Yankees/Red Sox rival is bigger than any of these, stop making a deal out of it.
What you should be complaining more about is the way the Red Sox fans dumped beer on Sheffield.... or the way they heckled David Wells about his mother when she was sick... oh wait, did you say anything about that? I wouldn't expect any less hypocrisy from Red Sox fans. Nobody "apologized" for those, which were way more out of hand and offensive gestures, so why should they apologize for booing a bonafide jerk in Papelbon who couldn't even pitch the 8th inning scoreless when he thinks he should close?