1. Titan are big enough that there shouldn't be any problems on that score - if they didn't pay out then the negative publicity would cripple them, and companies spend a lot more than that on advertising budgets.
2. As far as I've heard, the final table hasn't actually taken place yet (one of the other CardsChat members has claimed to have qualified for the final table but hasn't heard what's happening there yet), so it seems like it's running late - I'd expect this would start generating some negative publicity if they continue to delay this, however.
3. Don't live in the states - live somewhere that gambling winnings aren't considered taxable income... makes things much easier. In the states, though, you should probably locate a goot local accountant to help you work out the best way to file it.