It wont work for you because you are on Vista 64, i haev *** same problem here.
spireite: Why use Orhos? Why not just stress test with TAT. It will give you a max temp reading, more than any otehr programme can. As for temps i've always found it to be extremly accurate, you can always check it with core temp to find your temps. Between the 2 of them they will give you a accurate reading fo what your temps are.