Conquest of the Horde

I'm trying to install World of Warcraft on a Mac computer. I have a few questions to ask regarding this.

First of all, is it possible to install the program using PC discs? I have the original game discs lying around somewhere, but I'm not sure if they'll work.

Second, I have a bit of difficulty using the site-hosted installer. It keeps crashing unexpectedly after I select the client as "World of Warcraft."

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http://www.freeimagehosting.net/uploads ... be3791.png

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Is there anything I can do about this?

Third, if I can't use PC discs or correct the site installer, does anyone know of a good torrent to use for Mac WoW?

Thanks in advance. C;