i have a vx 6000, and thier are a few ways to get ringers onto the phone...
the easiest way is to sign up for an account at
www.vzwpix.com and upload ringers to your phone. (it supposed to be for pictures / but will support almost any data type)
check howardforums for more info-- if you still can't get it, PM me and i'll show you how i did it.