[REBOL] [REBOL]Illegal PORT Command

[tjohnson]

The following code;
read ftp://jazz.trumpet.com.au/
result in the following error message from rebol:
connecting to: jazz.trumpet.com.au
** User Error: Server error: tcp 500 Illegal PORT Command.
** Where: read ftp://jazz.trumpet.com.au/
;;NOTE: This site has anonymous ftp access.
What am I doing wrong here?
Tim