Download the file and make changes you'll need to use Adobe Photoshop or Elements

and download the filter ICOFormat to convert to ICO from the following location Telegraphics

Save Favicon.ico to your public_html folder

Add the following links to your index.html page in the <head> tag

<Link rel="shortcut icon" href="favicon.ico">
<link rel="icon" type="image/ico" href="favicon.ico">

Sites to Download Favicons

DeGraeve Don Favicon Favicomatic Favicon
Favicon CC Favicon From Pictures Free Favicon GenFavicon
Icon J Icon Barn Real Favicon The Black Cell