You can get the following applications in the kdenetwork distributions.
Stable applications are relatively bug free and come in source and binary formats.
ftp.kde.org/pub/kde/stable/Beta3/distribution/stable
Unstable versions change daily and are only in source form, meaning you must compile them to get a working version. Remember these are unstable and might not even compile. If you have a problem with an unstable application report the problem and it will most likely be fixed in a future snapshot.
ftp.kde.org/pub/kde/unstable/CVS/snapshots/current