But #2; I am guessing that they mean the vhosts/sites conf files that are used by apache. I'd try looking in /etc/apache2/sites-enabled (to check which ones are enabled) and then edit the corresponding file in /etc/apache2/sites-available (the files in sites-enabled should just be simlinks to the corresponing files in sites-available). Hopefully thats it.
Not sure about #1
But #2; I am guessing that they mean the vhosts/sites conf files that are used by apache. I'd try looking in /etc/apache2/sites-enabled (to check which ones are enabled) and then edit the corresponding file in /etc/apache2/sites-available (the files in sites-enabled should just be simlinks to the corresponing files in sites-available). Hopefully thats it.