Hi Bill,
Since only administrators have access to edit the photo information of other members, the simplest and most commonly seen way to have an IMO added is to simply comment on the photo with the IMO near the beginning so that it may be seen from the home page and noticed by an admin and amend the photo.
Of course, there isn't always an admin watching, so some comments do slip through the cracks. In that case, do not hesitate to private message an admin with the IMO and a link to the picture, and we will be glad to help.
Regards,
Kyle