DiBosco
Does this look like KDE3 to you?

Nothing fancy, just oxygen style & Glassified theme.
As doktor5000 wrote
KDE 4.6 looks like KDE 4.6 everywhere else, when they are using the same theme.
Unless you're talking about the Ia-Ora theme & style that comes as default with Mageia.
But, since you're a long time Mandriva user (like me), you know already, that Ia-Ora theme & style are the defaults for Mandriva also,
even before 2010.0 version. Until version 2010.2.
So, I don't understand what's the difference -in default looks- between Mandriva 2010.0 and Mageia 1. AFAIR, they are the same (except the wallpaper).
Too bad "PrtScn" key doesn't work.
But, you can try it from menu:
Menu >>
Graphics >>
KSnapshot (it's installed by default).
A screen-shot could help to understand what you really mean.