I found
this thread that explains how to display a unique logo for different forums.
I don't understand how to apply it to my situation. I have logo1 that displays on the forum display page and the thread display page for all forums. I want to change it to logo2 for just forum #16. When the other forums are displayed, the previous logo should remain. I don't understand how to customize the code in that thread to fit this situation.
Can you please assist me? Thank you.