Yes – A group of climbers involved with Australian Geographic went there several years ago, did a number of climbs.
A photo of a climber on the large east face featured in a Simon Carter climbing calender (about 1997 or 98 I think)
A feature article also appeared in Aust. Geographic.
Please be aware that Chatham Is. is a Class A reserve and permission is required from CALM to land there – also there is 1 landing site only.
You may want to contact Pete Nidd about it.