another contact ringtone problem

[tarastog]

droid bionic: I've searched the other threads, but can't find a solution. I want to set individual contact ringtones, but it won't let me set to the contacts i add myself. It will only work to my facebook contacts. I use zedge to download the ringtones, and they do work, just not on the contacts that i want it too. i don't know what else to do.