C://windows// something im not sure. I guess if you want to use them for an avatar elsewhere the quick way would be to take a screenshot of the avatar screen and then crop which one you wanted with photoshop. If you want to change your avatar, go to Control Panel > User Accounts > YOUR Account > Change my Picture. And if you didn't like the ones they had you can just browse for more pictures.
thnx for the info guys but i already knew... ^_^ i just wanted to put some avatars made by me in that folder so maybe they would appear in the selection window with the default ones...
I will hve a search for you now, i will edit when ive found the DIR. Got em: C:\Documents and Settings\All Users\Application Data\Microsoft\User Account Pictures That should do it, theres another folder in that DIr with the default pics in. Phew.