According to this story in the Richmond paper, not one of these has been granted.
The article notes: "According to a spokesman for the Virginia Court of Appeals, as of the end of 2006, 92 petitions had been filed. Eighty-five were dismissed and seven were pending."
The article also says: "Critics say that is because the law is impossibly tough."
The article quotes Senator Stolle: "I think that unless somebody is actually innocent and actually has to a large degree irrefutable evidence that they're innocent, they will not be able to take advantage of this writ of actual innocence."