It's a custom template based on a highly modified version of Typo. In fact the TOC is nothing like Typo's now so i don't think the answer would really benefit anyone.
I edited: /typo/script.js to read:
addInitEvent(function() {
var toc = $('toc__inside');
var obj = $('toc__toggle');
if(toc) {
toc.style.display = 'block';
}
});