Originally posted on 2008-10-13
Well this is a little problem faced by lot of webmasters who are new to cms/ open source softwares.
Here are the steps for different cms:
Joomla-
Joomla directory> Templates folder> [Current Theme]> favicon.ico
Drupal-
Drupal directory> themes> [Current Theme]> favicon.ico
WordPress-
Drop the favicon in root.
Short one!
Popularity: 21% [?]