Hmm I only see one torrent on ThePirateBay, so I'm assuming it's that one. I have no idea what could be causing it, seems most people are having troubles whether installing it, or it crashing at certain stages on the first disc.

There's not really much I or perhaps anyone can do as it's an illegal way to obtain the game, but the PC version's price on eBay is ridiculous. Until they release a new digital downloadable PC version, like they did with FF7, I recommend emulating the PSX version or buying it on PSN if you have a PS3/PSP/PSVita.