You have two options. If you don't want to do any work yourself, simply look at your pictures, pick the one you like, and send mail to nat@www-swiss.ai.mit.edu with the number corresponding to that picture. I will add your picture to the group page.

Note that the pictures you will be looking at have low resolution. This is because high resolution versions of all the pictures take too much space, not because you are different. Once you pick the one picture you want, we can get the high res picture online.

If you want your picture for a different purpose, or simply want to play around with it yourself, you can get the picture you want from the PhotoCD (follow steps 3-5).