You might get more responses in the Natural Home & Body Care section.
I've struggled with dishwasher stuff. Either I get too much film on my stainless steel ware, or my dishes don't get clean. At this point, I use a meager 1 tsp regular detergent in the normal dispenser space, 1 Tbs baking soda sprinkled at the bottom, and vinegar in the rinse thing (it needs to be refilled very often).
Every once in a while I have to do a load with a 'normal' amount of regular detergent because my coffe/tea cups have gotten too brown.
Good luck!
Aven