Someone

# domain.com replaced with my domain of course

# /etc/apache2/sites-enabled/www.domain.com

NameVirtualHost *
<VirtualHost *>
        ServerAdmin email@domain.com
        ServerName www.domain.com
        DocumentRoot /home/www.domain.com/htdocs/

        <Directory />
                Options Includes Indexes FollowSymlinks MultiViews ExecCGI
        </Directory>

        ScriptAlias /cgi-bin/ /home/www.domain.com/cgi-bin/
        <Location /cgi-bin>
                Options ExecCGI
        </Location>

        ErrorLog /home/www.domain.com/logs/error.log
        CustomLog /home/www.domain.com/logs/access.log combined
</VirtualHost>

# /etc/apache2/sites-enabled/img.domain.com

VirtualHost *>
        ServerAdmin email@domain.com
        ServerName img.domain.com
        DocumentRoot /home/img.domain.com/htdocs/

        <Directory />
                Options Includes Indexes FollowSymlinks MultiViews ExecCGI
        </Directory>

        ScriptAlias /cgi-bin/ /home/img.domain.com/cgi-bin/
        <Location /cgi-bin>
                Options ExecCGI
        </Location>

        ErrorLog /home/img.domain.com/logs/error.log
        CustomLog /home/img.domain.com/logs/access.log combined
</VirtualHost>