I've been working on, and 
looked at manual, I'm not understanding layers, I was under the impression if I continued to draw seperate on the same layer, i.e. on head include nose etc, it would be bound to that layer, I have boned the rig prior to recent edits and assumed the edits would stay with the Head layer, I've tried the various 'flex' binding methods etc, but no result, at stage now of 
not sure how I've achieved the results, as I've managed to get the eyes, and pupils to remain with the head, although I think I may be running into problems (
as if) later as I hope to follow the head rig tutorial by Heyvern for the blinking of the eyes etc. Infact I've tried seperate layer for nose, but my lack of understanding of layers is preventing progress, well slowing it down anyways. 
 
 
Looks like TinyPic has found the second Nose jpeg a step too far for upload so hope text is sufficient