Subforum layout

[.QUACK.Major.Pain]

I asked this before and got a fix for what I was looking for, but seems the threads are now gone, so I'll ask again.

I upgraded my files and am back to default layout.

How do I get the subforum to appear one above the other instead of going across the page?

I remember adding a <br> in a file, but don't recall exactly where and which one.

Thanks again.