Head topology, help please.

I have tried to return to my friends head. I know the topology is off, but I cant seem to figure out how to fix it or exactly where the problem lies. I could watch the video time and time again, but its easier for me to understand when shown directly on. Heres the front and side view. And the blend file. I know the skull is completely off as well. ( too big and too blocky) If you need the reference pics, let me know.

http://www.mediafire.com/?b3lbtt1wcd4

I think the best way is to carefully read this excellent tutorial:

http://www.subdivisionmodeling.com/forums/showthread.php?t=907&page=7

http://img204.imageshack.us/img204/2490/aevole5hl.jpg