How to use apt to install security updates ?

[ceres@mail.isis.de (Christian Schlettig)]

Hello,

I'm new to the list and I've just read the security.debian.org page and inserted the "deb http://security.debian.org/ slink updates"
line to my /etc/apt/sources.list.

When i run apt-get update i'll get the following output:

:/home/user# apt-get update
Get:1 http://security.debian.org slink/updates Packages [19.4kB]
Get:2 http://security.debian.org slink/updates Release [105B]
Fetched 19.5kB in 3s (5958B/s)
Reading Package Lists... Done
Building Dependency Tree... Done

and nothing else.

I'm using the original files from somewhere October so i'm wondering why there are 
no new packages for me ?!

What am i doing wrong.

Thanks,
  Christian