only way is apne Email account jis te orkut da profile banya hoya hai os vich jaa k check kr k alternate email adress kehre bhare hoye ne.... oh sare alternate adresses no khol te check kr....
if its not so.... then u have got too options ya ta apne acoount no ik din vich hi apne sare friends to report abuse krva de then may be google wale oh account delete kr den....
or u can complain it to cyber cell of your state police... then