Open BitTorrent, right-click the torrent and choose Open File Location...
Then extract the file...
Go to the extraction folder after you have extracted it and run the setup
To open zip u will need winzip. Search for it in the net and install. After that, go to your GTA rar file. Right click and choose extract files then choose where to put your extracting file. better to choose desktop because easy to find it on desktop. Now, you're ready to play GTA.
Check more how-to here. http://place2how-to.blogspot.com/
Good luck))