Placing Music on an i880 using USB

I have an i880 with 2gb Memory Card
and the USB cable to hook up to PC
====================================
Using LabJal, I am able to see what's on the phone and place music
on the phone

But

I cant load music and have it appear in the Music Player
(What folder does the media player music go?)
(I tired the Audio folder, and they dont appear in music player after
being uploaded to that folder)

Also, What format & size do ringtones have to be?

Thanks

Read the Stickys in this forum. mainly this one:
i730/i870 media formats