This tutorial should help using the favicons created here:
Upload a picture to www.favicon-generator.de and edit it or create the new icon in the editor.
Click "OK" to create the favicon.
Check the preview and download the favicon by right-click the link and select "Save target as" to save the
icon on your local disc. under favicon.ico.
Please insert the adress of your website where you plan to use the favicon.
Upload the favicon to the root-directory of your website and place this code within the header
(between and , e.g. under the title) in all html-files:
<link rel="shortcut icon" type="image/x-icon" href="favicon.ico" />
Of course you can save the icon under a different name than "favicon.ico" and in a subdirectory,
but you have to adjust name and path.