Of course it isn't simple... This PSU uses another controller chip (I'll post a complete list later).
There are also 7 (seven) big MOSFETs, and at least two smaller ones: this is no ordinary PSU.
From OC's technical forum, I came across this site:
http://www.webx.dk/oz2cpu/homemade-pc-main.htm
This fella (oz2cpu) watercooled just about everything. PSU diagrams and info are there, to some extent.
Now if I could only translate Danish...