Are you sure you're also logged in on the wiki (eg. you see a welcome text and logout link on the top left)? And there's no blue tabs displayed on top of the black bar where the title is displayed?
hmmm, I didn't know there was a separate Wiki login 
... but if there is, it's well hidden, cause I can't seem to find it (either that, or I'm blind)
Poltergeist: links redirecting to the front page is a known issue, will be fixed, but dunno when. Jorito is from the department 'fixes'..
Also, if you select any other language than English, and try to go to the Wiki, it says "page not found"
Also fixed
login of registreer om te reageren