http://corefonts.sourceforge.net/
You have to make the RPM using the obove site. For convenience I have created the RPM (please do not link directly to this file):
msttcorefonts-2.0-1.noarch.rpm
[mirandam@charon ~]$ sudo rpm -ivh msttcorefonts-2.0-1.noarch.rpm [mirandam@charon ~]$ sudo /etc/init.d/xfs restart
Restarting xfs may not be necessary. Many programs need only to be restarted. Some older applications, may require you to log out of Gnome or KDE and log back in (reboot NOT required).