I don't want to be the boring one, but do you REALLY need it that bad?
Honestly, isn't all those options already on BIOS?
Although it might speed up the initial phase of overclocking, it's not that much necessary.
Or do I miss something?
You make it sound like if you don't have it, you're missing something very important.
But I do understand you right to ask, I've tried with my 8k3a to have a single option added to BIOS (a really important one, that can't be changed while the system is running) and never got it. So, if I want to change it I have to keep swapping BIOS versions (duh

).
I think this nVidia software is more like a "fun thing" than a really useful piece of software.