Thats what you were looking for? [M36]

SELECT * FROM gallery2 WHERE topic_id="407856" UNION SELECT * FROM gallery2 WHERE topic_id="444592" UNION SELECT * FROM gallery2 WHERE topic_id="962297" UNION SELECT * FROM gallery2 WHERE topic_id="304907" UNION SELECT * FROM gallery2 WHERE topic_id="1454752" UNION SELECT * FROM gallery2 WHERE topic_id="24707" UNION SELECT * FROM gallery2 WHERE topic_id="431176" UNION SELECT * FROM gallery2 WHERE topic_id="893869" UNION SELECT * FROM gallery2 WHERE topic_id="755230" UNION SELECT * FROM gallery2 WHERE topic_id="40800" UNION SELECT * FROM gallery2 WHERE topic_id="1343882" UNION SELECT * FROM gallery2 WHERE topic_id="433132" UNION SELECT * FROM gallery2 WHERE topic_id="1515374" UNION SELECT * FROM gallery2 WHERE topic_id="445115" UNION SELECT * FROM gallery2 WHERE topic_id="1068392" UNION SELECT * FROM gallery2 WHERE topic_id="346055"