Original post updated, cleaned up a few things, removed unnecessary reboots & added adriancard's fix for lib install errors.
Tested/working on BT5 R3 with HD5670

HD7000series users advised to use...

adriancard posted a fix for these dependency errors on another thread here

I don't have reply access to the "howto" section, so...

http://www.backtrack-linux.org/forums/showthread.php?t=55188


Running benchmark (8972.6 PMKs/s)... /

Computed 8972.59 PMKs/s total....

Just using iwconfig to set your rate, it will revert after rebooting.
You can add the line to your /etc/rc.local to make it run every reboot though.
I prefer to use something like:

iwconfig...

The old howtos don't work anymore, and the wiki article only uses plain OpenCL
CAL++ is up to 2x faster in pyrit, so here's how to get it working on RadeonHD cards.

This should work well for...

That's a bit poor, looks like you're running plain CUDA.
With CAL++ you should be hitting 130k+