Deleting ringtones from vx8600

Ok so I used BitPim to put my own ringtones on my 8600 and it worked great but I was wondering how I would remove them. I tried opening BitPim, getting my phone's data, and then deleting a ringtone and then sending the data back to the phone but that didn't work. Anyone have any ideas? Thank you.

Is the goal to delete a lot of the ringtones? Why not just delete them on the phone itself?

When I go into the call sounds menue my only options are to either play the ringtone or select it.