k. first, you get an account at photobucket.com or something like it. then, when you click on "my account", you find this:
hopefully you have the avatar you want somewhere on your compruter. click on the "choose file" button, navigate to the avatar, select it, then press (ok, enter, or whatever button) your compy says you need to do to choose it.
then click the upload button. after a try or two, and going through some screens of "no thanks, i don't need to chat with some skank", you should see this a little bit below the upload button:
double click on the "direct link" box and it should copy the whole thing for you automatically.
then, come back here and go to your profile. you should see this:
paste the "direct link" into the "link to offsite avatar" box.
click submit, and enjoy.
dave
ps. clear as mud?