get some chanca piedra or gold coin grass and start breaking the stones down and keep flushing. read the posts about people who have had big stones passed such as yours.
also, read Andreas Moritz book, The Amazing Liver Cleanse - can go to his forum for more info/questions. can get his book at www.1stbooks.com
that's my two cents. good luck! you're welcome to join our full moon flushing party tonight!! (see previous posts)