Also Charabanc, try hitting the orange button at the top of this page marked About MS. There are loads of links onto different things related to MS, from the different types, to new diagnosis and treatments.
As far as how long you’ll be waiting, that will depend on the hospital you’re in and your neurologist/Consultant. So next time you see a doctor (I’m assuming you’re currently an in-patient from what you’ve written) ask how long a final diagnosis might take.
Sue