Thanks. We hadn't updated the vbSEO support for vBulletin 4 yet and it looks like this was the problem. Seems to be all ironed out now.
- lead developer for VaultWiki
By noticing that the Discussion Tabs were not working ... I hope that doesn't implicitly mean I like the Tab.
The Discussion Tab is the most effective way to discourage discussion ever !
LINK: Comments/Discussion displayed below a wiki entry