Wouldn't any monitoring program work off the existing sensors? I am a service tech and in my field I've found the problem mostly lies in the miscalibration of the probe ie. resistance. So that why im working with my stock mobo program even though it sucks.
You might want to have a look at benchtest for a program gp_Temp5 which will allow you to monitor thermistors via the game port. It takes a bit of time to setup and works best with 50-100k ohm thermistors, but I have had good luck with 10 k ohm thermistors.