I don't know if anyone is still reading this, but since I was using it, I thought others might also.
I was having an issue with implementing SSI in my system and then I realized that my file does not look like the <Director> tag that is used in the tutorial because it is separated out by comments. Mine says <Directory "/Library/Webserver/Documents">
Then there are seven lines of comment before the Options line. This was tripping me up before because I found one section of the code that looked like what was posted but then I realized it had /manual as well. Now, after a sudo apachectl graceful, it works.