Please follow the setup instructions for MediaWiki. After you have completed these, you should see LocalSettings.php.

thank you for your answer. They are on different domains actually, forum is on a abc.org and wiki is on abc.info, so the tld is different,

This will not work for different domains as cookies aren't designed to be read across domains - just within a single domain.

You're correct. However, IIRC the Mediawiki-Extension CentralAuth uses some kind of mechanism to tunnel cookies to make exactly this possible.

Sorry, that is outside the scope of this product.

I didn't meant to completly integrate this plugin with CentralAuth but to get inspired by their methods of cross-domain-cookies which would be a great plus for sites who are running forum and wiki under their own domains. :)

At my job (not MyMMOGames), we use SAML tokens for cross-domain authentication. It can be done; I just do not have the time to devote to it for a community project like this for which I receive no compensation, heh.

ok changed to use a subdomain, same issue :( one thing (dunno if it makes a diff) is that wiki is not part of the forums folder, its set outside the forums folder, that ok?

getting mixed reports some people say it does allow them to login. will check further.

Please check your cookie settings in vBulletin - make sure the cookie domain is set to ".domain.com".

thank you for your continued help. I reset it to that, now im getting somewhat farther, now on top it says
it doesnt change to my username, I have tried ctrl F5 to refresh with no change. thank you.