The most recent copy of the old kurohime site I can bring up through the wayback machine is from 2005 where we get one of the images you linked and "管理人:各務(Kagami)", but that's four and a half years ago so the differing name doesn't necessarily mean anything.
Anyway I'd think they're the same. I think the entry is saying that the one on the right was from about two years ago, the one below about 5 years (which matches up), and that he's going to do her again at Winter Comiket.