How exactly do you finish the game? I wiped out everyone at the Gem Saloon, and ended up with some figure following me around - wasn't sure if that was Amanda or another villain. The only interaction you have with them is to fight them, though, and after that, nothing happens.
GOSHDARNIT! I thought I had that particular bug licked. I'm real sorry, man. If you clear your cache for this page, it should at least allow you to play again. I'm really sorry to everyone who's had this bug, I just can't seem to replicate it any more, and I've tried everything I can think of to fix it 'blindly' :(