Getting HTTP 500 Error

I’m trying to setup Nginx+phpFPM for first time (php5.2) and can’t get
working. Base system is FreeBSD 9.1.
So my main configs:

nginx.conf - user www www;worker_processes 2;error_log /var/log/nginx/error.log crit;pi -
php-fpm.conf - <?xml version="1.0" ?><!-- $FreeBSD: ports/lang/php52/files/php-fpm.conf.sampl -
vhost config - server { listen 80; server_name; rewrite -

Nginx started and working as i may see output from phpinfo(), but if i
something comlex, eg. CMS like Drupal, WP, Joomla it generates HTTP 500

Also I can’t see any php errors in logs despite they are defined in

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