freepbx-2.8.0.tar.gz

There are several options available with different flavors that Google can help you with. For an ISO project run by the Asterisk developers, take a look at: AsteriskNOW^TM 1.7 32 bit or AsteriskNOW^TM 1.7 64 bit

If you are running Version 2.3 or later, there is no need to pull the tarball to upgrade. You can simply use the Online Module Administration page to upgrade the entire package by choosing the FreePBX Framework Module. Otherwise, complete instructions to upgrade from a tarball can be found at: Upgrade Instructions

Installing FreePBX from scratch requires the installation of many prerequisite components. Although there are several pre-configured ISOs available (see above), detailed instructions for several flavors of Linux can be found on the Installation Instructions Page