FREED. GUNTER PARCHE, 39, assailant of tennis star Monica Seles; by a judge; in Hamburg, Germany. Almost more shocking than the courtside stabbing of Seles during an April tournament was the decision handed down in the case by Judge Elke Bosse -- a suspended sentence. Bosse cited Parche's psychological problems and his expressions of remorse for the attack, which Parche claims was motivated by a desire to boost the prospects of Seles' rival Steffi Graf. The 19-year-old Seles was appalled by the sentence. ''What kind of message does this send to the world?'' she asked.