When they feel like it.
I wrote once and asked, and I was emailed a letter that stated that if I wanted to do the job, then I could update it as often as I wanted. It was not a nice letter.
I suppose they get around to it when they want.
Not being ugly, that is the response I received.
From what I gather, the site has apparently folded. E-mails are returned as undeliverable, and unless their mailbox is full, that's all she wrote. Too bad, as it was at one time an excellent source of information. Another dot.com demise, I guess!