Well I'm trying to do the same thing he is and am not having much luck at all.
Here's a small shot of my /etc/services file
ftp-data 64123/tcp
ftp-data 64123/udp
# 21 is registered to ftp, but also used by fsp
ftp 64123/tcp
ftp 64123/udp fsp fspd
I've made the change, restarted both xinetd and vsftp but have had no luck. I even restarted the box and still vsftp uses port 21. Anyone have any suggestions? Man services isn't a very user friendly Manual Page and I haven't been able to find much help with Google.