Hey Izobel and welcome to Boston Terrier Forums!!
So glad to see that we're not the only nuts out there
Anyway, getting an avatar is pretty easy - just click on the profile link on the top of any page and then scroll down to the bottom - the avatar section.
From there, you can click the browse button to select an image on your computer and then just make sure to save your changes. After that, you're all set.
Let me know if I can provide any additional help! Oh, and we're waiting on the pictures of Izzy! :wink: