I noticed that those two php files (header.php & functions.php) already existed when I went in via FTP, so I simply edited them as you told me.
I went to verify with Alexa and it failed.
My head is spinning with all of these edits and I am losing my place as to what goes where.
I don't understand what you are saying, could you walk me through step by step in a single response instead of having me skip back to previous answers and try to piece together the process?
I've followed the codex links you gave me and I'm confused, so please forgive me for asking what looks like a simple process to you, but is very complicated for me.
. . .by the way, my website crashed after editing those php files, so I deleted them (and my website came back up).