apt trouble

[Sukrit <holysmoke@skycable.net>]

Hi,

i am trying to get some packages of the unstable tree. So added
following line to my source.list

deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free

Then did a "apt-get update".

apt gets it's files from the server, everything is well. Database is updated.

Now if i try and install something, like
apt-get -t unstable install gkrellm2
[gkrellm2 is there in the unstable tree, i checked with other files too
like libc6 etc]

i get an error couldn't find pacakge?
What am i doing wrong?

regards
sukrit