Yes, it is safe to do a Liver Flush if you've had your gallbladder removed. Well, Andreas Moritz has his own Liver Flush program which you can check his forum, //www.curezone.org/forums/f.asp?f=100157
he's not an active member there anymore but you can check the archives. If you want, you can check out his book, "The Amazing Liver and Gallbladder Flush" http://www.amazon.com/Amazing-Liver-Gallbladder-Flush/dp/0976571501/ref=pd_bb...
I think that he also has a new book out called, "The Liver and Gallbladder Miracle Cleanse: An All-Natural, At-Home Flush to Purify and Rejuvenate Your Body" This is a very good thing that you have decided to start cleansing your liver.