Community Project 2012.08 does not run on PHP 5.2.* because kernel uses "\" namespace character from PHP 5.3.* and anonymous functions.
But on page http://share.ez.no/downloads/downloads/ez-publish-community-project-2012.8 is said it should run.

• autload.php uses _DIR_ constant from PHP 5.3.
  Can be fixed with:

if ( !defined( '_DIR_' ) )
{
define( '_DIR', dirname( __FILE_ ) );
}

• Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /var/www/ezpublish-4.7.0-cp-2012.08/kernel/private/classes/ezpkernel.php on line 60

• Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /var/www/ezpublish-4.7.0-cp-2012.08/kernel/private/interfaces/ezpkernelhandler.php on line 33

• Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /var/www/ezpublish-4.7.0-cp-2012.08/kernel/private/classes/ezpkernelweb.php on line 179