Maybe it's just temporarily down, a server error or something. o.o;
I read a news post a few months ago that there wasn't enough payments to keep it up.
I hope it's not true, because I liked Ciel Network. >.<
Last time that I saw the update, when I check the forums, the site remains active. Maybe the owner of that site didn't felt like updating it for some reason. :/
Also, I really love that site (including the lemons), without those things, the stories will be forgotten. Including those awesome pictures of girls from Megaman squeals. D=