[CentOS] No /etc/yum/repos.d after new install of 5.2

Since I was in the unenviable position of completely reinstalling my
system today, I started out from the 5.2 Final DVD and then ran yum
update to get the 79 (?) packages (and another 14 after that).  I
noticed something I found rather odd.

There is no /etc/yum/repos.d directory at all.

Is this right?  Doesn't seem so.  Makes it hard to set specific
options for various repositories.

Can someone explain that one?

Thanks.

mhr