http://www.icyphoenix.com/viewtopic.php?f=28&t=3682&p=55610#p55610
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Joshua203
Sat 21 Apr, 2012 01:38

Re: Download BBCode
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The install instructions are all in the first post (in the spoiler, click to open the window)

In the last section is explained that you need to do those edits to ALL templates you are using, anything before the last section is done to a function file (bbcode) and ALL languages you are using.

Be aware that this is for IcyPhoenix only.
And please be aware that this is a very old MOD ( Older Versions Archive » Old Customizations) ... I don't know if this would still work on the current versions!!
Maybe  someone else can tell you more about this.

Greetings,
...Joshua203