ahh that explains it, now check at this error...
[Wed Feb 29 21:14:17 2012] [warn] [client 188.8.131.52] mod_fcgid: stderr: PHP Warning: require_once(): open_basedir restriction in effect. File(/usr/share/pear/Net/
IPv4.php) is not within the allowed path(s): (/var/www/clients/client6/web22/web:/var/www/clients/client6/web22/tmp:/var/www/wug.za.net/web:/srv/www/wug.za.net/web:/usr/share/php5:/tmp:/usr/share/phpmyadmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/usr/share/php/:/usr/share/pear/Net/
) in /var/www/clients/client6/web22/web/includes/ipcalc.php on line 16, referer: http://www.wug.za.net/myipdns.php
[Wed Feb 29 21:14:17 2012] [warn] [client 184.108.40.206] mod_fcgid: stderr: PHP Warning: require_once(/usr/share/pear/Net/IPv4.php): failed to open stream: Operation not permitted in /var/www/clients/client6/web22/web/includes/ipcalc.php
I got it working by copying the phpfile, would have been nice not to hack it to get it to work :P