Zoltar, Doyou really think VOldemort would make Harry A horcrux?? That is part of his soul so if he kills harry another part of him is gone, His soul is precious to him, he wouldnt throw it away. Remember he has attempted to kill harry before, so that would be killing a horcrux. He wouldnt do that.
Rayne: the prophecy was like this.
"The one with the power to vanquish the Dark Lord approaches...born to those who have thrice defied him, born as the seventh month dies...and the Dark Lord will mark him as his equal, but he will have power the Dark Lord knows not...and either must die at the hand of the other for neither can live while the other survives...the one with the power to vanquish the Dark Lord will be born as the seventh month dies..."
This is saying if they are both living, they will keep on fighting each other, And neither can live until the other dies. So Harry doesnt have to die to kill him but thats probably what will happen.