Apache não carrega imagens

Pessoal, fiz a instalação de um apache, php e mysql em um Ubuntu server 12.04, todos instalados via apt-get, quando coloco o site programado em php, as imagens não aparecem, então vendo os log's me aparece isso...

já mudei as permissões do diretorio www com 750 e o usuario e grupo é www-data

Se alguém poder ajudar agradeço

root@ubuntu:/# tail -f /var/log/apache2/error.log
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img, referer: http://192.168.0.90/site2009/
[Wed Oct 10 09:14:55 2012] [error] [client 192.168.0.14] File does not exist: /var/www/site2009/_img

nos erros não estão sendo mencionadas as imagens.

Poste o código que estás usando pra carregar uma imagem...