Click the link 
here  It's Japanese (I think) 
 
  Basically 
"Everybody has to cross the river"   The following rules apply:  
 Only 2 persons on the raft at a time  
 The father can not stay with any of the daughters without their mother's presence  
 The mother can not stay with any of the sons without their father's presence  
 The thief (striped shirt) can not stay with any family member if the Policeman is not there  
 Only the Father, the Mother and the Policeman know how to operate the raft    
To start click on the big blue circle on the right   To move the people click on them. To move the raft click on the pole on the opposite side of the river.   
So what's the sequence??