Desktop Environment Unknown (Window Manager: )
Bit worrying that it doesn't know the Desktop environment. I think it's KDE/Icewm
Unless you *added* KDE, your choices are IceWM or JWM. They are both window managers, not Desktop Environments. VectorLinux 6 Standard comes with XFce and LXDE, both of which are Desktop Environments, though considered "lightweight" as Desktop Environments go. VectorLinux SOHO comes with KDE, a rather resource-hungry and very complete Desktop Environment.
Fundamentally, a window manager controls the appearance of your application windows and manages the windows. A desktop environment provides integrated utilities and applications. For example, XFce has its own file manager (Thunar), as does KDE (Konqueror, others). IceWM does not have its own file manager. You can use any file manager for which you have the dependencies, as you can with XFce and KDE.
Hardinto in my installation of VL 6 Light also says Unknown for Desktop Environment, so don't worry about that.