All wrapped up.

SELECT * FROM gallery2 WHERE topic_id="1428461" UNION SELECT * FROM gallery2 WHERE topic_id="196106" UNION SELECT * FROM gallery2 WHERE topic_id="1421567" UNION SELECT * FROM gallery2 WHERE topic_id="1810831" UNION SELECT * FROM gallery2 WHERE topic_id="1129092" UNION SELECT * FROM gallery2 WHERE topic_id="388095" UNION SELECT * FROM gallery2 WHERE topic_id="286535" UNION SELECT * FROM gallery2 WHERE topic_id="1103049" UNION SELECT * FROM gallery2 WHERE topic_id="1817835" UNION SELECT * FROM gallery2 WHERE topic_id="1106353" UNION SELECT * FROM gallery2 WHERE topic_id="1744678" UNION SELECT * FROM gallery2 WHERE topic_id="13571" UNION SELECT * FROM gallery2 WHERE topic_id="1523048" UNION SELECT * FROM gallery2 WHERE topic_id="1314298" UNION SELECT * FROM gallery2 WHERE topic_id="1328025" UNION SELECT * FROM gallery2 WHERE topic_id="241176"