EK432/433 has the new 777-300ER ULR aircraft, check the seatmap on emirates website as thats pretty accurate. Are you sure that rows 17 is the bulkhead?
http://www.emirates.com/nz/English/f...JY&from=195345
Shows row 16 as the bulkhead which im pretty sure is correct, last time i flew i was in row 18 and there was 2 rows ahead of me.