Debian question: Package names

[Joel Hammer]

I added this line to my sources.list file:
deb http://download.at.kde.org/pub/kde/stable/3.0.3/Debian/ ./
I want to get kde 3.0.3 on my libranet 2.0 system.
Just using adminmenu and kde says I have the most recent. (2.2.2).
However, when I run adminmenu, I don't get this higher version number.
I don't know what package name I should use, etc.
I am a total newbie to Debian.
Any insight appreciated.
Joel