I bought the Sonar Platinum upgrade last week and just got around to try installing the AD2 upgrades, but I cant find how to add the extra kits I chose over my current installation.

You need to use the XLN installer.

Hi. If you go to https://www.xlnaudio.com/ and register with your SONAR serial, you get access to the extras.
The easiest way to install is to use the XLN Online Installer
Hope it helps. 
All the best.

Thanks, I forgot about that installer.
 
I added the two jazz kits, sticks and brushes and they sound exactly like what I needed to finish my demos. I then also got the funk kit for the third one, but its still downloading.

Did you get it up and running?

Zargg
Did you get it up and running?

Well no, I still cant get the drum view in PRV to work, please go to in this thread if you can help. Ive also emailed cakewalk support, basically I followed the guide for installing drum maps, but the drum view shows up as blank white.
 
Edit, cant post links so .... 
 
forum.cakewalk.com/Preferred-view-or-interface-for-entering-drum-patterns-with-Sonar-X3-m3570340.aspx#3573428