you will need three things to get started:
torrent site:
http://www.isohunt.com/ (to find what you need)* note that there are many site to get what you want i jus like this one the most.
utorrent:
http://www.filehippo.com/download_uto... (to download your file)
daemon tools:
http://www.filehippo.com/download_dae... (to mount your file)
after you have gotten all the things listed above follow these steps:
1. go to the torrent site and seach for what you are looking for (i used gta san andreas as an example only).
2. sort the files to show the most seeder (the more seeders the better download speed you will have).
3. download the torrent file.
4. open with utorrent (again this is not the only one to use i just like it the most).
5. select download location and click ok.
6. wait for the download to finish (this may take a couple of days for file over 3.0 gigs like san andreas depending on your net connection.
7. after this use daemon tools (usually found inb the bottom right hand corner of the screen it is a white ball with a blue lightnig streek through it) and mount your .iso file by left clicking it nad bickin which virtuall drive you want (by default it only has one by i have two for onvenience).
8. run installation as normal setup (when it ask for a cd key the virtual drive should have it in a folder called crack or what not).
9. go back into the crack folder on the disk and copy the .exe (im my case it was SF4Launcher.exe).
10. go to where you installed your file (most cases local disk C:) and paste the .exe. it should ask you to replace a file click yes.
and there your done
*notes: not all torrents come in ready .iso files so you may have to get other programs to extract convert etc.
after installing daemon tools you will have to restart your pc.
always remember where you installed your file.
always try to get the file with the most seeders.
some files require more than one file to copy over for a crack.
some files you will have to go for a crack and serial code on your own.
some cracks must be the same file version as the game so if you have a 1.5 game but a 1.0 crack it may not work, so after applying the crack it is best not to update the game.
never pirate because it is illegal