Right clik (on picture of your choice--must be online to have a url--if your picture is not online, post it here on this talk forum, that puts it online and gives it a url)
Right clik on Properties (of the picture chosen)
Address Url:
http://talk.buybelowcost.com/eve/forums?s=5716013&a=ga&ul=5 (this is what it says on your picture you posted, okay)[Example only here]
Rt clik and Copy
Go to my space
Clik on Profile
Clik on Edit my avatar
Clik on custom avatar
See little white box at the bottom that says "use custome url:", right clik and paste the url from above into the box
Clik Preview
(make sure you see your picture in the little square box at the top)
If so, then clik on select this one
Then go down to the bottom of my profile page and clik submit.
Post something and see if your picture comes up.