Well, Survivor, you have just opened the lid on a good old fashioned can of worms (again).
CCSVI works for some people and not for others. With the exception of one clinic in Belgium ("Ours is a once-only treatment") us seems to be generally accepted that the treatment will need to be repeated after a few years. Most of the clinics carrying out the anti-CCSVI procedure, seem to be based in India or in Eastern Europe.
In a recent thread, whammel gave a link to the research being carried out in this area. You may have to search for this, but I think it was within the last week.
Alternatively, you can go to the following thread on this forum, and see just what sort of view appear and what sort of argument is generated by CCSVI: