I suppose they didn't indicate read points
Your Right

Update:-
Tested FSB with wolfdale, can confirm that :-
Stock FSB voltage , changes depending on CPU Type
65NM = 1.25v
45NM = 1.15v

Ace suggested that default (g)MCH of 1.25v made sence as it was aan intel standard , which ties up with my MM reading you saw in the link. On that basis i've also comnfirmed that there is an undervolt of ~0.20v on the overvolt. Confirming Anandtech's finding.

So apart from the mystery voltage from the middle pin next to the mch volts, which may be PCI-E volts, that's sorted.

Have updated original post ion link.
Thanks once again.
Team effort guys