The thing about Indigo is it's really expensive and not the same as normal TIM. You get one or two uses per pack normally and it's a one time thing. Normal TIM is one time, yes, but you usually get several uses from even a small tube.
It also applies differently, you have to set it right, throw on the heatsink, but not all the way. Get it to reflow, then tighten it down.
Here's the guide for a 775 socket, which is the same for most anything, but yeah:
http://www.indigo-xtreme.com/docs/In...llation775.pdf
Also the review Skinnee did:
http://skinneelabs.com/indigo-xtreme/