I have just tried this hack with a new installation of Mediawiki 1.16.5 and an empty wiki and still it will not connect to vBulletin without the error message:
Server error
The website encountered an error while retrieving
http://www.rifewiki.org/wiki/Main_Page. It may be down for maintenance or configured incorrectly.
So all attempts with MediaWiki 14-16.5 have failed. This is really annoying and hope someone here can help me get this running properly. It worked fine on the old server so I suspect there is a problem with a newer version of PHP.
PHP: 5.3.10-1ubuntu3.5
PHP Max Post Size: 32.00 MB
PHP Maximum Upload Size: 32.00 MB
PHP Memory Limit: 128.00 MB
MySQL Version: 5.5.28-0ubuntu0.12.04.2
MySQL Packet Size: 128.00 MB
I have been trying everything I could find for over a week now and still cannot get past this problem. The forum is running perfectly, no problems there. The Wiki runs fine until I try to link both with this hack and then it crashes. It all worked perfectly on the previous server for years, now this.
Regards
Peter