admin->Configuration->My Store and set the Auto Update Currency
yea, i did that, and it turns out i had also one test database and when i selected the original database and inserted the code successfully again, the auto update currency appeared. Thanks. At 9:30, i entered 10 (o'clock) in the auto update currency option and now at 10:15, it didnt update yet. Was it supposed to? I dont really understand what the manual means by: "The script will run before that hour eahc day
providing someone is in admin prior to it."