Sal and Trudy,
From your profile, click on the link that reads "View/Edit Complete Profile", it's up at the top right of the page. Then from the "Edit Profile for Sal & Trudy Garofalo" page, scroll down about half way and you'll see where it reads: <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Avatar / Picture URL:
You can choose an avatar to show on your public member profile page. </div></BLOCKQUOTE> Immediately to the right is an "Edit" link.
Click it. From the "Avatar Selection" page, click the "Custom Avatar" link and paste the URL to your picture in the box provided. Then click on the "Update Avatar" tab.
Sometimes it'll take the system a while for it to show up in the forums, maybe 20 or 30 minutes.