To echo Boreas's question, there is a big one coming in March? From Zamboni?
I was skeptical when I first looked into CCSVI (I'm skeptical of LDN, let alone bee stings, although now when you apply CCSVI theory I see where the bee stingers were on to the vasodilation effects). One of the big things that differs CCSVI from so many of the MS dashed-hope cures is that this arose out of well-designed scientific hypotheses and studies that have built on each other. Zamboni has been at this for twenty years, starting with that study on children with vascular stenoses who, 20 years later, grew up 90% of them to have MS. His diagnosis studies (not the treatment studies) were double-blinded. Now those diagnosis studies have been replicated at the Buffalo lab in the small-scale study. Replication is key in science. The results of the larger scale study coming out in February are said to be promising...well, it's all starting to roll.
So what we seem to know for certain at this point is that the majority of MS people have venous abnormalities of the neck and torso/spinal area (azygous) and that non MSers do not. That this points to a simple cause and cure has not been replicated yet, but it is the take-away of Zamboni's treatment research of the last two years...and, really, if veins like this have an effect elsewhere in the body, it is not logical to think they would not have an effect in the cerebrospinal area as well. That that effect is MS has not been proven yet either...but since the venous abnormalities are occuring only in MSers, again it's the logical conclusion.
I've looked for ways for this to be wrong, because of the whole too-good-to-be-true thing. Once the replication at Buffalo turned up, even in the small-scale, it starts to be that there would have be gross incompetence or fraud for it not to be the case that there are venous abnormalities in the majority of MSers. And from there, the rest follows.
Sorry for the long post. I am still in some shock/denial that CCSVI is real and so I go through the evidence on a fairly regular basis. It keeps coming back to a big fat yes.