Thought I'd let you know that comment of yours on Extension talk:CentralAuth inspired me to write a step by step guide :P
I didn't write it for people without root access, since I don't have web hosting without root access. You might want to provide your knowledge? I would think set up w/out root nor any help would be a nightmare!
Cheers! Thompson.matthew 15:18, 3 December 2011 (UTC)