libUrlFtpCommand not working?

[Sannyasin Sivakatirswami]

Goal: be able to move a file from one directory to another under ftp 
control with FTP command "mv"

so, we try to take the new libURL syntax for a walk (thank you Dave 
Cragg!)

get libUrlFtpCommand("PWD","myDomain.org","myLogInName","myPassword")
answer it

result : 257 "/" is current directory

so far so good; but, I can't get to first base with

get libUrlFtpCommand("ls","myDomain.org","myLogInName","myPassword")
answer it

I should get a listing, but instead

500 "LS" command not understood

same for "cd public_html"

500 "CD public_html" command not understood.

Any clues?

Thanks!
Himalayan Academy Publications
Sannyasin Sivakatirswami
katir at hindu.org
www.HinduismToday.com, www.HimalayanAcademy.com,
www.Gurudeva.org, www.hindu.org