rotating armatures in pose mode

how do i rotate armatures in pose mode, and can i select one end of the armature…

1)The same way you do for anything in Blender, select a bone and hit R .
2)And no you cannot select either tip of an armature bone only in Pose Mode, only the entire bone .

ummm. i do hit ‘R’ and nothing happens… that was kinda the first thing i’d do

Well unless you have transform locks or some complicated constraints set up then R should work …
You might also make sure you have Rest Position turned off (in the Armature panel) …

If you still can’t figure it out post a blend .