htaccess and php not working in ERRORS directory

I am trying to disable directory listing within the 'errors' directory for a domain and it isn't working. I have tried .htaccess and altered the apache config file for the domain to no avail. What could be the issue?

Also, I tried substituting 404.html with 404.php, but apache won't process the php within the errros directory?

Ok, I figured part of this out. I disabled /errors directory listing by adding Options -Indexes to the nameserver.conf. Now if I could get php to work I'd be golden.