Problems with tabbing my forumhome

[StilgarSinople]

Hello everyone,

I would like to create a tabbed forum home like this one (https://vborg.vbsupport.ru/), but the only one tutorial/mod I have found is the following :

https://vborg.vbsupport.ru/showthread.php?t=233135

But the result is not really what I wanted. First the tab hasn't their own url, each tab is linked as forum.php, so it's impossible to link someone directly to a tab. And then I have some difficulties to make this mod working because I'm crashing the style I installed on the board.
If you want to have a look at the awful result : http://www.mundusbellicus.fr/forum/forum.php

The question so is do you know how to tab the forum like it is done here ! Thanks in advance.