ok, here's an avatar run-down for you.
1. Find an avatar you want.
2. Right-click on it and save it to your computer (I usually save them to my paint program)
3. Go to photobucket.
4. Click the 'Browse' button to find your avatar on your computer.
5. Click 'Open' when you find it and it will go back to the photobucket site with the avatar address written in.
6. Click Add picture (or whatever it says)
7. Yeah, avatar is now added to your photobucket account.
8. Copy the url (not the img, not the tag).
9. Go to Weight Loss Forum.
10. Right above the ads you'll see a dark blue bar with things like User CP, FAQ etc... Click on USER CP.
11. Scroll down a little, on the left hand side click Edit Avatar.
12. Copy the url into the custom avatar space where the url is already a bit started. (make sure when you copy you don't get two http://'s.
13. Click Save Changes.
14. Sit back and admire your purdy avatar.
Good luck!!