My father has it currently. I also know 3 people that had it in the past. I do not know enough about it to claim any CCSVI link.
I do know that the 3 people that had it, all recovered. It just takes a long time. My father is doing well also but we think it will be about a year before he recovers fully. Everyone says it just a long recovery process.
(for those keeping tabs on me: me=MS, one bro=AVM in head resulting in stroke at age 33, father=GBS - all Dx in less than year. It's a good time in my family