I installed Addictive Drums with Sonar Platinum, and selected three of the ADpacks. The ADpacks seem to be included OK, but when I go to browse the beats, every one has a message like "PREVIEW - free files from each midipack - contains <tiny number> of files out of <large number> "
 
I'm not looking for anything esoteric, just some basic beats that can be built on. I set it to filter on 6/8 time, and have about 12 choices.
Did I not install the midipacks properly?  Are they in a separate file to be downloaded?
 
 

In addition to the ADPaks, you need to select 3 MIDIPaks and 3 Kit pieces. They are separate from the ADPaks which only contain drum kits.