These are some avatars that you use for Windows XP and beyond, in conjunction to their wallpaper counterparts.
You are free to copy (save to your own server), distribute, display, and perform the work
under the conditions of attribution. You must attribute the work in the manner specified by the author or licensor, which are the following:
1: You are free to alter the avatars to the extent of adding texts. However, you are not permitted to claim the avatar as your own.
2: You are free to take as many avatars as you wish. However, if you use this other than your login avatar in windows you must credit Fragiled Arts and link back to the website.
For the full terms, view the license at the end of this page