Wikidot Open Source

I tried logging in today to make a couple of replies. I'm using Opera 9.25 for Windows XP Home Edition.
When I first opened the login box, my opera wand recognized it and all I had to do was press the wand
in order to quickly log in, as I've done it on that site before. However, at my first try, I was met with
this message:

<www.wikidot.com>
Error processing the request.
You have no valid security token which is required to prevent identity theft.
Please enable cookies in your browser if you have this option disabled and reload the page.

Notice that it says wikidot.com, not org.

I then tried logging into wikidot.com first. Worked without a hitch. Then I went over to the .org-site, but to my surprise, I was not logged in. I guess wikidot.org is not a part of the wikidot.com community huh. May I ask why?
Also, I don't recall whether I had to regsiter anew when I first started browsing the .org-site, or if I could just use my standard login.

Well, I then gave it a second try, manually writing in the login info instead of using the wand function.
This is what I got:

<www.wikidot.com>
wikidot.com security error:
Your authentication token in the request is not valid. Please enable cookies in your browser and try to repeat the action.
If you see this message on the page not associated with the wikidot.com wiki hosting it probably means an indentity theft attempt or improper use of wikidot.com service.

I never managed to login again with Opera from this computer (will try another one later today). Right now I'm using IE.