Getting FOG Project
The latest release of FOG Project is v1.4.4, released September 10th 2017.

At this time, FOG Project can only be installed on a computer running Linux. We recommend using a Long Term Support distribution meant for servers, such as CentOS or Debian, though you can use a variety of other distributions. We also recommend installing FOG Project inside a virtual machine, to aide in easy backups and upgrades.

You can download a pre-packaged tarball of the latest release of FOG Project, v1.4.4, from here.
Please verify that your download matches one of the following checksums:
md5:  b865b1ee714e6d82b83c33f15d420534         fog_1.4.4.tar.gz
sha1: 5358f2799693bed0c7a0a7915526b2be244cf29c fog_1.4.4.tar.gz
To install FOG Project, an internet connection is required. During installation, it will download other binaries and install any needed dependencies. More detailed guides can be found in the wiki, however, installation is as simple as extracting the tarball and running the install script:
tar -xzvf fog_x.x.x.tar.gz
cd fog_x.x.x/bin
sudo ./
Next Steps
Once installed, check out the wiki for more information and guides. If you need help head over to the forums.