Host configuration questions

Hello All,      I have gotten through installing Ruby, Rails, and Passenger
with all of your help. I'm configuring the host, and keep getting
hung up on the details. i have edited the /etc/apache2/apache2.conf
and added the following: LoadModule passenger_module /usr/lib/ruby/gems/1.8/gems/ passenger-2.0.3/ext/apache2/mod_passenger.so PassengerRoot /usr/lib/ruby/gems/1.8/passenger-2.0.3 PassengerRuby /usr/bin/ruby1.8

Do I need to add NameVirtualHost *:80 to the .conf file?

then i created a Virtual Host:

vim /etc/apache2/sites-available/test

Don't you need to put it in /etc/apache2/sites-enabled/ ?

Fred