Yes Blavatksy does share some untruths that are proven now, but it wasn't intentional, she was writing on such a vast subject. I believe she was enlightened, certainly much more then 99% of the rest the world at that time lol. Her mission was Truth, nothing more nothing less.
As for free will, put this video to 49:45, Manly makes what I consider a very deep point on free will, but you have to listen until 52:40ish to get his whole point. I've come to the same conclusion he talks about. Yes we have free will, but most use it to build a cage around themselves, because they choose not to follow Divine laws.
http://video.google.com/videoplay?do...=manly+p+hall#