Rear Sunroof Leak

I recently bought my 97' SE7 Discovery, and im having problems with a leak in the rear sunroof, first of all, it doesn't opens, can't open it manually, so I took off the glass. What comes to my mind is the drains, but can't see them, if anyone could tell me where they are, I would really appreciate it. thanks!

Look Here , think that may point you in the right direction