Hi! This is my first post here. I registered just so I could let you folks know of a discovery I've made.
The old Casio keyboard forum seems to still be available, but at http://www.casio.ie/music/forum/
Naturally, anyone can browse the old posts. If you're a previous member, your user name and password are still valid, but be sure to first enable cookies for the Irish site in your browser, or you won't be able to post.
Since I found the Irish site by chance, I don't know if it will be there long-term. I hope some of you find it useful while it's around.