I've always installed it as a fresh theme, when the forum software was upgraded I was still using v2.x of this theme, hence my comment earlier here. Ignore that comment and the one before it.
I have installed version 3.x of Behemoth as a new theme when I made this comment.
Issued confirmed. I installed another new version just for you and changed the logo only. Result is attached.
I have pmed my site to you.