No worries. It takes a while to get used to navigating 
Basically, when you look at the starting page of the forum, there should be a few threads that have the word “VALUE” in their title. To sign up to a game, you reply to any of those. This thread is for wowkeepers, where it seems that so far there is one potential DM for a VALUE table but you’re the only player so far.
At Requisite (which is the other location), there are two tables that are full. So make sure to check back in both threads, in case the game at Wowkeepers doesn’t happen or in case another table opens at Requisite.
You don’t have to bring anything other than yourself, and a character idea. You can make a character beforehand, but if you need help, best to post it here and be there early. Someone will usually be able to help.
Lots of people bring dice, but you can roll digitally or borrow in the beginning; and a note book to take notes (which is optional).
If there’s any questions, just go ahead and ask
The addresses for both locations should be in the top of the post. WOWKeepers is at Holochergasse 53, 1150 Wien and Requisite is Krummgasse… 1a, I believe? 1030 Wien.
(There are also games on Saturday - at a restaurant called Sägewerk close to the Hauptuni in Währinger Straße 21. Currently it’s Dungeon of the Mad Mage at level 6.)