How to have Tabs just like on vb.org here?
 

If you look at the skin here on vb.org. At the top right, just right above the search box, you'd see 5 tabs: "Home" "Forum" "Articles" "Mods" "Styles" and when you clicked on either tab, they've got you to a certain ... place (forumdisplay ?)

And i was thinking... how do they do that? :) Any ideas?

<a href="https://vborg.vbsupport.ru/showthread.php?t=166278" target="_blank">Hide Forum</a>

Sorry I am confused, I have seen
https://vborg.vbsupport.ru/showthread.php?t=166278 get posted a few times when people ask how to install tabs on their forum.
When I look at the link posted, to me it just seems its a way for people who already have tabs to hide forums.

Yes, you are correct. All the forums in that tab above are all 'hidden', thus they don't show up in the forums list on the main page. The tabs themselves are just html with links to the hidden forums.