Internet piracy

I am trying to download Sid Meier's Civilization 4.  I bought the game but lost the disk I need to play it, could one of you tell me a way to get the game off the internet so i dont have to buy a new game.  I thought about torrents, but have never used one.  HELP

HAHA YOU BOUGHT THE GAME BUT YOU LOST THE CD YEAH RIGHT HAHAHA

WTF ENJOY YOUR PIRACY SHITNOOB

ALSO NYPA

>>2
im serious, i did lose it.  its probably the most agrivating thing ever!

>>3
http://sockgagged.com/update/091907/091907-10.php

It's national "Talk Like a Pirite" day. Go talk like a pirate.
Arrr.