It's a simple php script that's included in a real b2evo template file like index.main.php
You can give it any name as long as you specify it in parent template file

@sam2kb wrote:

It's a simple php script that's included in a real b2evo template file like index.main.php
You can give it any name as long as you specify it in parent template file

right... my bad.. should've thought of it .. totally forgot about page.main.php.. Well it's been a good while since i last tinkered with b2 so these kinds of things are normal :D

It's not properly formatted at the moment, but this is the man page that is supposed to list all possible files:

http://b2evolution.net/man/themes-templates-skins/introducing-evoskins/skin-structure