[ReCom]

Add a plugin with hook location: forumbit_display

The code:

$forum['title'] = '<img src="images/forumlogos/'.$forum['forumid'].'.gif" onerror="this.style.display=\'none\';" /> '.$forum['title'];

Save the plugin.

Then upload the forum logos into your images/forumlogos directory, with each logo named after the forumid (e.g. if the forumid is 18 then the logo is named 18.gif)

Set the plugin as active.

(the img tag I included above is special since it automatically handles situations where the logo files are missing by hiding itself)