You need to buy a good book like Andreas' 'The Amazing Liver & Gallbladder Flush'. Just go to Amazon and buy even the downloadable PDF version and you will save yourself a lot of trouble trying to determine what works and doesn't work, and why.
The short answer is that stones in the liver itself can be a problem. It's not just about the gall bladder. The liver stones can also be flushed. There are other people on this forum without gall bladders, and if you take the time to browse and read you find them. You can use the search feature too.