1. I only played JO SP. So the updates never bothered me.
2. All Jedi Knights are better than the Unleashed games.
3. I'd play it with the JA game so I could use more force powers, saber styles, and playermodel cheats.
4. JO came out in 2002 right? 20 or there abouts.
5. I guess. Never played online. Not even once.
6. Nope. The code is free to use, but the assests (models, maps, animations, etc) are not. Someone would have to buy the disk to get those.