Anyone know where the download link for this library is?
It this an AVR library that is already in Arduino folder?
There's a section on the page you linked to headed "The Code" which contains a link to the zip file:
The Code
You can retrieve this library from http://www.arduino.cc/playground/uploads/Code/frequencytimer2.zip. Unpack it in your lib/targets/libraries/ directory and include it in your sketch.
Andrew
Oops,
Thanks Andrew - don't know how I missed that ...