sorry, i don't have any personal experience with ms, but when i typed "'urine therapy' multiple sclerosis" into yahoo (with quotation marks around urine therapy to weed out sites that have the words urine and therapy but not together) i got a lot of sites that list ms as one of the diseases that ut has successfully treated. i didn't find anything that went into a lot of detail, but it was definitely mentioned in many lists.
you're right that ut is supposed to work on everything since your own body produces it and will respond based on your unique condition. good luck. i hope if you try it you will get good results.