Correct KAM.cf location?

[Jerry Malcolm]

As I said in a previous post, I'm installing clean.  I'm looking for a 
way to validate the installation and make sure that everything with SA 
is working as it should.  I'm pretty confident I've got the basic SA 
function working.  But along with the bayes issue from a couple of posts 
back, I can't seem to make the KAM.cf file get involved.  In previous 
installations, I would see a lot of KAM rules showing up in the spam 
reports on emails.  I also have written some rules on my own and put 
them in a similar file next to KAM.cf in /usr/share/spamassassin.  But 
I'm not seeing any of my rules get hit.

I created a rule that triggers if the subject or sender is my company 
name.  I sent an email from an outside email address and specifically 
added this name to the subject (and it's also in my sender email 
address).  Nothing in the spam report.  If I understand things 
correctly, that is telling me that my custom .cf file isn't even being 
loaded.  So, where is the magic spot to put my custom .cf and the KAM.cf 
files so they will get used?