Using SSI.php with a MediaWiki Extension

[Incognitus]

I want to use SSI.php with a MediaWiki extension, so that I can, for instante, show the latest topics on a Wiki page just by inserting a tag like <SMFtopics> </SMFtopics>.

However, after placing the require("path/SSI.php") on the skin, it doesn't recognize the SSI functions when I use them in the Extension. And if I place the require on the Extension, it blows up with an error about sessions.

Where should I place it so that it will work?