I'm trying to figure out witch Photoshop I will need to do the things I want to do, like add icons and graphics to a photo or add a background to a photo kind of like green screen. I'm interested in buying the creative cloud set but a family member says that I need Photoshop CS5 but I need to know which Photoshop is included in creative cloud or if I can do these things in one of the apps on creative cloud. I just don't want to spend this kind of money on a product that I don't need.
CS5 is no longer sold, but you may buy CS6 if your are sure that a 4 year program that is no longer being updated will work for you
Photoshop Cloud is the most recent version... Compare CS6-CC http://prodesigntools.com/adobe-cc-vs-cs6-comparison-chart.html
To learn about the actual capabilities of the programs, you should ask the users in the individual program forums
List of Forums https://forums.adobe.com/thread/1929760 to find a forum for your program
-or Direct to the Forum Index https://forums.adobe.com/welcome