In comments_all.php find: $sql = "SELECT i.image_id, i.cat_id, i.image_name, c.cat_name, i.image_media_file, i.image_thumb_file
Replace it with: $sql = "SELECT i.image_id, i.cat_id, i.image_name, c.cat_name, i.image_media_file, i.image_thumb_file".get_user_table_field(", u.", "user_id").get_user_table_field(", u.", "user_level").get_user_table_field(", u.", "user_name")."
Then find: "admin_links" => $admin_links,
Insert above: "image_user_name" => ($image_row[$user_table_fields['user_level']] != GUEST) ? "<a href=\"".$site_sess->url(ROOT_PATH."member.php?action=showprofile&user_id=".$image_row[$user_table_fields['user_id']])."\">".htmlspecialchars($image_row[$user_table_fields['user_name']])."</a>" : $lang['userlevel_guest'],
Then in template you can use {image_user_name}