Okay, I'm able to access wiki_index.php after I added "|wiki|yui" in the appropriate place within the htaccess at /forum/. I didn't make the other change because it caused 404s:
Using the vBSEO example, your .htaccess file might already contain something similar to the following:
Code:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule ^(.+)$ vbseo.php [L,QSA]
This block should be completely commented out or removed, since VaultWiki accomplishes the same thing.
Is it normal that things work even without that change?
EDIT: nah... wiki_index.php is somehow redirecting to "/forum/wiki_index/" which of course doesn't exist. What a mess.