To change your avatar go to your profile page by clicking on the Profile tab at the top of the site. Down at the very bottom you will see an Avatar section. You can pick a default on from the gallery (I will pick one for you if you leave it blank for too long) There is also a space where you can browse your computer.If you want to use a real life pic or a screenshot of your simself it works the same way.
1. choose the picture or screenshot you want
2. resize to 150x200
3. save somewhere you can easily find it
4 click browse under avatar and select the picture and upload it
5 press save at the bottom of your profile
Jaded