What makes the group images show up?

If I run the code below, then all users who belong to Group 6 have the image added to their profile. BUT it still doesn't show up. When you look in each person's Profile, the selection box for the Group 6 image is blank.

What I'm trying to do is "force" the graphic to show for all people in Group 6. What else do I need to do?

Quote
UPDATE ubbt_USER_PROFILE AS up, ubbt_USER_GROUPS AS ug
SET up.USER_GROUP_IMAGES = 'a:1:{i:1;s:1:"6";}'
WHERE ug.GROUP_ID = '6'
AND ug.USER_ID = up.USER_ID


If you remove the User's choice by rem'ing out the code below, what does that do?
Quote
{if $gimages}
{$lang.GROUP_IMAGES}<br />
{$gimages}<br /><br />
{/if}

--BIll B