Hi Sammie,
maybe the book "The Gentile Times Reconsidered" can help you....The Insight Book mentions Josephus (Antiquities X, ix, 7).....there, in the book I mentioned, it says on page 298, that the Watchtower Society conceals the fact that Josephus, in his last reference to the peoriod of Jerusalem's desolation, states that the desolation lasted for fifity years, not seventy. The statement is found in " Against Apion I,21, where Josephus quotes Berossus' statement on the Neo-Babylonian reigns.
In the book " Upon the chronology of Josephus" the translator of Josephus, William Whiston wrote that Josephus often in the later parts of his works, attempted to corrected earlier figures. For expamle....the length of the period from the Exodus to the building of the temple as 592 years, which he later changed to 612. ......from the building of the temple to its destruction, he first gives 466 years, which he later corrected to 470.
Maybe you can find these books in a library...if the Society relies on Josephus to proof the 607 theory, than maybe you can use Josephus to disarm that theory.
Good luck, it's a hard subject to explain....I hate history and dates, but that book was very interesting to read.
