Help Kies - how to see other folders & transfer files?

[kiiat]

ok i have a silly question....

i have some epub files and i want to transfer them to my phone so i can read them via the ereader. when i launch kies, i only see music, photos, videos and podcast on my phone... what about the other folders?

can i just transfer my epub files to any folder listed above?

btw, i'm using a mac; for some reason, i cant mount my phone as a drive but have to use kies to transfer files (which i hate)