You can't move files back and forth with Bluetooth on the E815 since Verizon crippled the profiles it has. The only way to move pics and ringtones back and forth from the phone without "hacking" the firmware is by either using a TransFlash card or buying a data cable.
I strongly suggest you check out
this specific forum for all E815 hacking/editing needs. It's on HowardForums, a well known phone site, and they will probably be able to help you out a lot more with phone stuff than most of the people here.