Hi Rick,
To install additional content please use the "Install CCS Content" link in the main CCS installer from your media. You should see it below the Install CCS Suite link.
If you have installed any SCU then you would need to relaunch the SCU installer ( e.g. CCS_11_0_APSCCSM_2013-1_SCU_Win.exe) or you can install a newer SCU which will let you install the latest content.
SCU (Content Update) or PU (Product Update) in v11 like earlier versions of CCS are cumulative and have no install order. Just install the latest one available for download.
Regards
Yuri