apt-get question.

[Shao Zhang <shaoz@unsw.edu.au>]

Hi,
	When I run apt-get update, I got the following error:

Get ftp://ftp.au.debian.org frozen/contrib Packages
Get ftp://non-us.debian.org frozen/non-US Packages          
Error ftp://ftp.au.debian.org frozen/contrib Packages                                            
 550 /debian/dists/frozen/contrib/binary-i386/Packages.gz: not a plain
file. 
Get ftp://ftp.au.debian.org frozen/main Packages                            
Error ftp://ftp.au.debian.org frozen/main Packages                          
 550 /debian/dists/frozen/main/binary-i386/Packages.gz: not a plain file. 
Get ftp://ftp.au.debian.org frozen/non-free Packages   
Error ftp://ftp.au.debian.org frozen/non-free Packages 
 550 /debian/dists/frozen/non-free/binary-i386/Packages.gz: not a plain
file. 
Fetched 9592b in 14s (664b/s)                                                                                
ERROR
ftp://ftp.au.debian.org/debian/dists/frozen/contrib/binary-i386/Packages.gz
  550 /debian/dists/frozen/contrib/binary-i386/Packages.gz: not a plain
file. 
ERROR
ftp://ftp.au.debian.org/debian/dists/frozen/main/binary-i386/Packages.gz
  550 /debian/dists/frozen/main/binary-i386/Packages.gz: not a plain file. 
ERROR
ftp://ftp.au.debian.org/debian/dists/frozen/non-free/binary-i386/Packages.gz
  550 /debian/dists/frozen/non-free/binary-i386/Packages.gz: not a plain
file. 

	My /etc/apt/sources.list is as follows:

deb ftp://ftp.au.debian.org/debian frozen main contrib non-free
deb ftp://non-us.debian.org/debian-non-US frozen non-US


where did I do wrong??

thx.