Attached Link: http://www.renderosity.com/mod/forumpro/showthread.php?message_id=3099192

This thread by the master might be of interest...

Also, in P7 and P Pro (not sure about P6) there is a Material Room Wacro button to add AO to a material.

And yes, AO requires Raytracing.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)