Gmod loading screen

So, in gmod 12 there was a online loading screen hosted at garrysmo.org, and a local one that i used for reference in making a new one for my servers. i cant find the ‘reference’ version i used to use so ive ended up making this one from scratch ( Hosted here ).

I can remember there was a method, pretty sure using the PHP $_POST data, to retrieve current file downloading, Steam ID, Map name… server hostname ect… Anybody know how to access them or any reference guides or something?

[editline]24th February 2013[/editline]

Woops, remind me to search before i ask. 3rd page of my search returned a result.
http://maurits.tv/data/garrysmod/wiki/wiki.garrysmod.com/indexb59e.html for future reference to anyone else