what does "moved to stable" mean and how does if affect sources.list ?

[Andy <list@firman.us>]

After learning about proper partitioning on this list, 
I want to rebuild a few of my debian Woody systems.

I hear people say that KDE 3.1 has "moved to stable" and I don't really
know what that means in regards to the big picture.

When I install Woody, will KDE 3.1 slide right in since its "in" stable?
Or do I have to enter this source at the beginning of the install?

deb http://ktown.kde.org/~nolden/kde/woody/i386 ./

Another quick question.
I manually add sources at the beginning of the install and add these below.
These are the 2 main sources everyone should have right?

deb http://http.us.debian.org/debian stable main contrib non-free
deb http://security.debian.org/ stable/updates main


Thanks, Andy