The GOG one probably works the best. I played it off a real physical disk and had no issues on XP (this was a while ago now), not sure about Vista/7 though.
The game is great fun; a lighthearted third person action game involving random amounts of stealth, fighting, puzzle solving, racing and shooting photos in a charming and colourful world with fun characters and some good humour. It's not too long, too difficult or too frustrating. Linear for sure, but definitely just a damn fun game.
As for your comment mode;