Hi, I'm brand new to all this too but I can help with the face, click on the circle at the characters base and and go to the channel window on the right, scroll down and you will see that Facial CPanel is set to Off, so just set it to on, and you have all the face features.
Im as stuck as you on the rest! I can see the hand conrolls but they are greyed out and unuseable, I think i had them on once but i dont know how.
The feet is the biggest mystery to me, i cand for the life of me figure out how to use the toes, i can select them as an object and rotate etc. but once I set them as a keyframe, they get left behind whenever I move the charaters feet. seems a bit rediculous that this would be how to use the toes so I'd realy like to know how to use them if you ever find out.
cheers
Matt