The review format is pretty self-explanatory. Pick the forum the review belongs in (Indy, Studio, Amp, Agency), then click the "New Review" button at the top of the threads. From there it's fill in the blank.
Notes:
If the provider doesn't advertise a phone number, "She will provide" is good
Specific address is a no-no - general area only ("GWB and NDT" or whatever the provider lists)
Details of the session go in the ROS.
Good luck and happy writing!