SSI.php is a common way of weaving forum data into a non-forum webpage. For instance, you can list recent topics in the sidebar of your homepage.
How to use SSI.php
So far, SSI.php is pretty much the same in Wedge as in SMF, so you can usually refer to the SMF documentation
How to use SSI.php
So far, SSI.php is pretty much the same in Wedge as in SMF, so you can usually refer to the SMF documentation