To add an icon for the website you just add the following code to the head element:
<LINK REL="SHORTCUT ICON" HREF="http://www.domain.com/iconname.ico">
CODE Example:
<HEAD>
<LINK REL="SHORTCUT ICON" HREF="http://www.domain.com/iconname.ico">
<TITLE>Page Title</TITLE>
</HEAD>