Sorry , i've checked the manipulator under user preferences window, bu it doesn't appear ?
Or i'm blind ?

If the option is here , i've sused Blender from years and know some good parts of it, i can't imagine for a Blender beginner how difficult it will be to find simple things !
(Where is the lovely GIZMO ?)
OK fond it : you have to click on the axes icon !
Well it should be displayed by default !