I came across something weird and it looks like it is inside of the php code, not the content.
On this link: http://www.firewall-darkcast.com/wiki/non-official-ships
The content looks like this:
Solarsystem Cruiser: "The Howard Stern"">Solarsystem Cruiser: "The Howard Stern"
Looking at the html, code is created between the links for no apparent reason. Unfortunately code blocks don't quite work the way I'd like them so I can't show the code properly. It generates an extra quote and an ampersand greater than symbol code (gt).
I did some testing and it doesn't seem to have anything to do with the quotes or the colon. Furthermore it works as intended in the forums.
Plugin <em></em> Not Found
I'm seeing this in IE8 and Firefox 3.5.5.
I'd love to rip into this further as it seems like it could be an easy code fix. I have a couple of questions that I'll PM you if you are interested in me helping.

Hm. Might be the flexifilter just isn't interpreting things correctly. I'll have to dig in to look.
I maintain the site. If you see bugs, or have a feature request, please let me know here: http://www.firewall-darkcast.com/forum/9