[MarkFL]

Assuming you have the user's userid in $userid, you can get the URL of their profile pic as follows:

PHP Code:

$ppuserinfo = fetch_userinfo($userid, 8);

if ($vbulletin->options['usefileavatar'])
{
    $ppuserinfo['profilepicurl'] = $vbulletin->options['profilepicurl'] . '/profilepic' . $ppuserinfo['userid'] . '_' . $ppuserinfo['profilepicrevision'] . '.gif';

    if (!file_exists($ppuserinfo['profilepicurl']))
    {
        $ppuserinfo['profilepicrevision'] = 0;
    }
}
else
{
    $ppuserinfo['profilepicurl'] = 'image.php?' . $vbulletin->session->vars['sessionurl'] . 'u=' . $ppuserinfo['userid'] . "&dateline=$ppuserinfo[profilepicdateline]&type=profile";
}

$profilepicexists = $ppuserinfo['profilepicrevision'] OR $ppuserinfo['profilepicdateline']; 


Now, if the variable $profilepicexists evaluates to true, the URL of the profile pic is in $ppuserinfo['profilepicurl'].