apt-get can't find unstable non-us packages

[Chris Majewski <majewski@cs.ubc.ca>]

I've replaced "stable" with "unstable" in /etc/apt/*sources* 
but apt-get update won't buy it:

20:36:04</home/krzys># apt-get update
Hit http://http.us.debian.org unstable/main Packages
Hit http://http.us.debian.org unstable/main Release
Hit http://http.us.debian.org unstable/contrib Packages
Hit http://http.us.debian.org unstable/contrib Release
Hit http://http.us.debian.org unstable/non-free Packages
Hit http://http.us.debian.org unstable/non-free Release
Err http://non-us.debian.org unstable/non-US Packages
  404 Not Found
Ign http://non-us.debian.org unstable/non-US Release
Failed to fetch http://non-us.debian.org/debian-non-US/dists/unstable/non-US/binary-i386/Packages
  404 Not Found
Reading Package Lists... Done
Building Dependency Tree... Done
W: Couldn't stat source package list 'http://non-us.debian.org unstable/non-US Packages' (/var/state/apt/lists/non-us.debian.org_debian-non-US_dists_unstable_non-US_binary-i386_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these missing files
E: Some index files failed to download, they have been ignored, or old ones used instead.
20:36:17</home/krzys># 

It looks to me like apt should be looking in 
/debian-non-US/dists/unstable/non-US/non-free/binary-i386
rather than
/debian-non-US/dists/unstable/non-US/bin
ary-i386/

-chris