[CentOS] MRTG question on CentOS

I'm trying to get MRTG up and running on CentOS, but the displayed http page says that I don't have permission to access /mrtg/ on the server.

Here are my commands

yum install mrtg vim /etc/httpd/conf.d/mrtg.conf /etc/init.d/httpd restart cfgmaker --global 'WorkDir: /var/www/mrtg' --global 'Options[_]: bits,growright' --output /etc/mrtg/mrtg.cfg public@10.200.200.1 mrtg /etc/mrtg/mrtg.cfg env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg (type again, per the MRTG instructions)

For what it's worth, when I 'tail /etc/httpd/logs/error_logs", I get the following

[Wed Feb 27 15:41:13 2008] [error] [client 10.200.200.58] Directory index forbidden by Options directive: /var/www/mrtg/

Any suggestions?