With sandals on his feet and a simple robe under his vestments, a humble Franciscan friar took on the task of righting Boston's troubled archdiocese yesterday and began by begging sexual abuse victims for forgiveness.<!ENDSUMM!> "The whole Catholic community is ashamed and anguished because of the pain and damage inflicted on so many young people and because of our inability or unwillingness to deal with the crime of sexual abuse of minors," Archbishop Sean Patrick O'Malley told a crowd of 2,400 at the Cathedral of the Holy Cross during his installation ceremony. "To those victims and to their families, we...