[Koha] Koha installer defaults to different directory than perl scripts?

Thanks to Paul for the help on httpd configuration. I am now able to load the first Koha page in a browser. However, I am not able to go further into "Log In" "Advanced Search" or "Search the Catalogue". I checked my opac error log, and it says -- "script not found or unable to stat: /var/www/cgi-bin/koha, referer: http://192.168.0.3/cgi-bin/opac/opac-main.pl" I used the Koha defaults during installation, which put everything into /usr/local/koha. There is nothing in var/www.cgi-bin. Should I try to install koha into var/www/koha rather than the default /usr/local/koha? Thanks... Robert