quote Jass
How does this game tie in with the rest of the series?
Well it seems obvious that the events that occur in DmC, come before all others in the series' timeline.
quote Jass
How did DANTE, the man who makes devils cry, get captured?
From what I can tell (and this is just an educated guess), but it seems that in this installment, Dante is going through a rite of passage of sorts. Basically, he's a no good punk who doesn't care about what he does, or who he pisses off. That's how the story usually goes at least, good guy starts off doing bad things, learns a few lessons, then changes his ways.
quote Jass
How come his hair looks like it's turning white instead of being white?
Not 100% sure on this one, but I would assume the hair colour is symbolic of his progression as he unlocks and gains more of his demonic powers. I could be wrong on that though.
quote Jass
Where/when does this take place?
I do believe this takes place in Europe and other parts of the western world.