Sniper ghost warrior 2 patch 1.2

[TheLHF]

I recently downloaded sniper ghost warrior 2. I want to ply it with others during a LAN so i downloaded a map pack. to install the map pack i need to patch the game to 1.2 or later but im not sure i know that it needs to be 1.2. i downloaded the patch, but when i run the .exe ti gives me an error message that the game is not installed. i don't know what to do anymore. I have tried many different patches and downloaded a different version of the game but nothing works. i would be grateful for any help or some download links.
if it helps the game was downloaded from piratebay and the patch from here: http://www.atomicgamer.com/files/87346/sniper-ghost-warrior-patch-1-2-direct2drive
I've checked everything for viruses and there aren't any.

 

[Trustdesa]

What about not stealing games and spend some money and buy them?

 

[TheLHF]

Thank you for your helpful answer. Can anyone give an actual answer instead of lecturing me.