Hey Carl,
In my OT class, it was mentioned that Josephus was biased, in the manner that he portrayed the Romans in a positive light. The main reason behind this bias is that they were funding his historical accounts, and he was living with the Romans (seems like it was one of the Emperors). I know my Old Testament textbooks talk about it. Biases do affect accuracy which is why I mentioned it. As for my textbooks, I need to finish my own homework (hope to be done by Saturday afternoon) before I can assist with yours. I hope this little bit of info helps.