Ok, i find it already. I've set the setting to 'Files auto approving' and now when finish upload, the status is 'APPROVED' (but still have the animated circle moving gif icon)
In my web folder there is a file called 1_temp (with CMOD 644)
stored in RAY/MODULES/MUSIC/FILES/
thanks for those who can teach me how to fixs this. How about you zak2008? your problem settle already?