The former Akus website should redirect to the wiki now. That link is the static (published) form, whose template is still getting some bugs ironed out (mostly in the menu bar at the bottom), but which is generally where you should point things.
One undocumented feature right now is that the wiki and forums share a password file, though neither one is fully aware of that. So if you register for the wiki, it'll create a new password for you which you'll then have to use for the forum, and vice versa. However, the wiki *should* accept your forum login without doing any additional registration... your username is what appears in the headers here: member+YourName@phoenyx.net. If you don't know the password that goes along with it (they were generated back when we switched, but that's been awhile), go here:
http://forum.phoenyx.net/profile/YourName
and hit Reset Password and it'll mail you a new one. (And then log in and check that your mailing address and subscription info is the way you want it to be, while you're there.)
If none of that works, send me an email at silver@phoenyx.net.