Waiting for you to slip it in ;)

SELECT * FROM gallery2 WHERE topic_id="1523117" UNION SELECT * FROM gallery2 WHERE topic_id="1641951" UNION SELECT * FROM gallery2 WHERE topic_id="1304399" UNION SELECT * FROM gallery2 WHERE topic_id="1040161" UNION SELECT * FROM gallery2 WHERE topic_id="1308322" UNION SELECT * FROM gallery2 WHERE topic_id="253529" UNION SELECT * FROM gallery2 WHERE topic_id="1025524" UNION SELECT * FROM gallery2 WHERE topic_id="218042" UNION SELECT * FROM gallery2 WHERE topic_id="753691" UNION SELECT * FROM gallery2 WHERE topic_id="638030" UNION SELECT * FROM gallery2 WHERE topic_id="798131" UNION SELECT * FROM gallery2 WHERE topic_id="48530" UNION SELECT * FROM gallery2 WHERE topic_id="827764" UNION SELECT * FROM gallery2 WHERE topic_id="389413" UNION SELECT * FROM gallery2 WHERE topic_id="432973" UNION SELECT * FROM gallery2 WHERE topic_id="1473821"