This may sound elementary, but I need to know how to change the ServerName, ServerAdmin, etc.
I know I need to: <Directory /etc/apache2/httpd.conf>, but how do I separate into multiple lines?
I cannot enter everything on one line, right?
Need help.
Thanks

I am not exactly sure what you are trying to achieve, however for the majority of the configuration work for apache2 you need to work with /etc/apache2/apache2.conf

If your question is on how to edit this file, I suggest that vi is the best choice. If you have never worked with vi, then this link will guide you through the most of it:
http://networking.ringofsaturn.com/Unix/viguide.php

With regards to changing the name of the server (host name), that would be a (for instance in Debian) a change to the hostname which is contained in /etc/hostname file (again editable with vi). Don't forget to also make the change to your /etc/hosts file so that your new hostname is mapped to your server's ip address.

I hope this is helpful.