In reply to rickyclimb:
Ricky,
I haven't spoken with Chris in a while and didn't ask him about any of the other summits. I seem to recall that for Oceania/Australasia he climbed Ngga Pulu when he did Carztenz, and his site seems to indicate that.
The account (badly translated by Google) of Dykh-Tau sounds plausible and he claims to have had a film cameraman down low, so there might be evidence of that, but he does state the film guy stayed low, which is understandable given the reputation of DT. His description of the true summit seems to indicate knowledge that would not be apparent from looking at it from down below. But to be honest, I don't know 100%.
I've never had much interest in Carstenz and that area, so I have no opinion on what should be the 2nd7 for Oceania/Australasia. I've seen plenty of people over the years refer to Ngga Pulu as the 2nd highest there, but I'm not sure of its prominence etc.
I'd never heard of the 'amazing Dr. Botha' but as his own website describes him as 'amazing' and says that he will 'soon .. reach the summits' of the second-seven, with K2 and Tyree still to do, you'll understand if I don't get too excited just yet.
Hans Kammerlander, Piotr Pustelnik and, I think?, Fredrik Strang are also interested in the Second-Seven. Of course Kammerlander and Pustelnik have the massive advantage of having climbed K2 already.
D