Good news, KDE team started migration of original KDE applications for Windows platform. Concerning windows.kde.org, users of Windows XP/2000/2003 can easily install famous apps like Konqueror, Kate and others on their machines, via KDE-installer.
If some of the applications don’t work from the beginning, just add KDEDIRS and Path in your Control Panel, as it’s described in the manual.
So far, I found only one minor thing: I couldn’t manage applications via Konqueror, however it needs some googling.
In general, lots of positive feelings for this great move of KDE, because some of the apps in KDE can’t be compared with Windows scanty alternatives.