Forum list inline-block

Hello. I want to put forum list in blocks, so one row could have two columns of forum titles. To put it in a simpler way, I want to make the same thing that is done on this help forum.

So, it has to appear not like this:


But like this:


I'm using phBB2. This is my forum link - http://gtfo.justgoo.com/

I managed to do this in phBB3 version but I find it very uncomfortable and I prefer phbb2, so I wonder if its possible to do it on this version.

Hello Please read this thread https://help.forumotion.com/t21989-multi-forums-in-one
This is how we have done the layout you want

Thanks!