Edit: the version from wow-curse seems to be a trial. To get the real one u have to download it from http://wow-pro.com/. Then u will not find un unzip or extract all option, but u get a link further on their page to a windows page that informs u of 2 ways to unzip. So i learned that u can also unzip by double clicking on the folder. For certainty i double clicked on every folder i could find, and then put the whole bunch into interface/addons in WoW. And it works ok now.
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Now he's closing his project yet again. Leaving us all in the dark. Thanks to the few that have to "big men" in the torrent scene. I just hope that someone else comes along that knows what Whoknowsit does and is willing to put up with the egos and the BS in the scene to share the guides we all enjoy. Because all I've seen so far are a bunch of people stealing Whoknowsit's research and the donators' wishes to keep it in THIS scene and safe for THIS SCENE, who don't know what they are doing.
I wouldn't buy Zygor guides. As a player since path 1.10 (around 7 years now) Ive seen a hearty wow community flourish through each expansion. I am a huge fan of the add on, Carbonite quest. It provides a pumped up version of wow's internal quest database. Also, its recommended to research your servers economy for making gold. http://www.powerwordgold.net/ is a great site for tricks of making gold. Pair it up with http://www.theunderminejournal.com and you'll be on your way to making fast gold to provide for all them alts :P
I only subscribed about 2 days ago after coming back to WoW after 6 years. The game has changed so much since I left right around the Cata release. I decided to start fresh on a new server. I still had all my old links and logins to places like Curse, WowInterface, etc. Loaded up all the addons I had favorited years ago (of the maybe 1/3rd that were still maintained). Got to level 20 in a few hours of playing. Had to look a bunch of stuff up.