I went to the field notices for Contact Center Enterprise, but apparently Cisco doesn't have any MS updates beyond April 2008? Am I missing something or not in the right place? Anybody know where I can find updates more recent than April?
Cisco has moved them. They are now listed in the Intellishield section of the security center. Go here:
In the individual notices published by month, you'll find a link to the specific stuff for IPCCE.