Your hardware and operating system must meet the minimum tech specs for the various apps.
http://www.adobe.com/products/creativecloud/tech-specs.html#requiremen ts
In your case, it seems like you're running Windows XP 32 bit which means you won't see the following apps since they will not run on your computer:
- Premiere Pro, After Effects, Encore, SpeedGrade - all 64 bit only
- Lightroom 4 - won't run on Windows XP. Only runs on Vista, Win 7 and Win 8
- Creative Cloud Connection - only runs on Win 7 and Win 8
In addition, you won't have access to any 3D tools in Photoshop CS6 Extended since they're not available in XP.
Plus Adobe have announced that Photoshop CS6 is the last version which will run on Win XP
http://blogs.adobe.com/photoshopdotcom/2012/09/photoshop-and-windows-x p.html
Time to upgrade your computer to 64 bit Win 7 or Win 8.