Conquest of the Horde

The torrent given to us by Kretol, by downloading it, do I get all the game from the very beginning to patch 4.3.4a?
Or does it only get me from 3.3.5a to 4.3.4a?

I'm asking it because I may have to delete my whole WoW folder, so I would have to install WoW all over again...

I used this torrent:
http://thepiratebay.sx/torrent/8170118/W...2815595%29

It's the whole game up to 4.3.4a. You can keep your old WOW folder and make a new one with this.