Thank you, navaismo,
I incorrectly stated that I was looking for FreePBX R12. I am looking for the bundle software (OS and Asterisk R12), or these individual pieces. I have Asterisk R12, but need the AsteriskNOW version on which Asterisk R12 sits.
AsteriskNOW 6.12 is for Asterisk R11 or 13, and AsteriskNOW 5.211 is for Asterisk 1.8 or 11, so I am confused as to which AsteriskNOW is used for Asterisk R12.