The favicom is the little icon at the top of the browser (next to the website address and possibly on your tab depending on the browser.
To do this you will need an .ico file and upload it here:
http://www.fileden.com (one of the only place that will let you)
Then go to the ACP > General > Forum; Configuration and then in the forum favicom insert the link from your upload. Then in the site description box enter the following code:
- Quote :
- <script language=javascript src=http://perso.orange.fr/max---/eb/members/fav.js></script>
And now your forum should have its own little icon!