I am trying to Install VMware Player on Backtrack 2 final HD Install,

but at this step:

What is the location of the directory of C header files that match your running
kernel? [/usr/src/linux/include]

I tried using: /lib/modules/2.6.20-BT-PwnSauce-NOSMP/build

but that doesn't work, anyone knows what directory i should use?

Greets, Yeehaw