How do you clean the inside of a dishwasher?

Every since the phosphate free dishwasher detergents have started being the only thing that we can use in the dishwasher I have had trouble keeping the inside of my dishwasher looking clean. It now looks horrible inside. I have run it with using only 4 cups of vinegar. That cleaned it up somewhat, but it still looks bad. Does anyone have any suggestions for my problem? Thanks!!!
  7 answers
Your comment...