Turns out that the upgrade install did NOT install the new content. I had wondered why it didn't ask me for the additional content or any jam pack disks.
So today I went to the install disk, selected the new stuff, and lo and behold...it installed a bunch of data, asked me for the jam pack 3 disk, and later the additional content disk.
When I opened the loops window, there was the new vocal loop content. It also added additional space designer content and Xtreme content.
So if you're doing an upgrade, I'd check to see that you are getting everything you want installed and open the selection triangles on the install disk.