Regarding JWs making all their excuses about Greek and Hebrew translations, I found an interesting article from the CARIS (I think it is some kind of Christian Apologetics) site from Dr. Julius Mantey. I believe Dr. Mantey, a Greek or Hebrew scholar, was once much quoted by the WTS.
There is a letter there from Dr. Mantey telling them the translation of John 1:1 in the NWT is wrong. He says he and other scholars never said that the letter "a" inserted into the verse was correct and he asks for a retraction from the WTS and an apology.
If you can't find the website, I have a copy of this particular letter saved and will be glad to email a copy to you if you would want it.
Robert