Hmmm. Did not work for me.
Went thru Astro, found the files, hit multi-, selected the files, hit copy, navigated up, went to system>media>audio>ringtones...
Hit paste... nothing.
I also tried this (several times) selecting "move" rather than "copy"... still nothing.
Do I need to reboot or something after? Should I see the files in the new folder immediately upon refreshing?
I'm not an Astro Pro by any stretch of the imagination, but I can usually figure this stuff out given enough time. Very weird...