I am working on Ubuntu 12.04 and don't know how to get wine.Please help and explain in detail.
Open up a Terminal by Pressing Ctrl + Alt + T
sudo apt-get install wine1.6
If you want to install Play on Linux (I recommend you have it : makes install Windows application easy.)
Install Play on Linux by typing in Terminal :
wget https://www.playonlinux.com/script_files/PlayOnLinux/4.2.9/PlayOnLinux_4.2.9.deb sudo dpkg -i PlayOnLinux_4.2.9.deb
For WINE my recommendation is to use latest via WINE HQ PPA at https://launchpad.net/~ubuntu-wine/+archive/ubuntu/ppa
The reason being its always safe to stay up to latest for more compatibility with games and other programs. WINE is being continuously developed so new games and others stuff gets added regularly.