The multimedia bonus disk may not help you with your vlc problem. But it is cool to have.
It's never been tested against Vectorlinux-light as that is just out, so I don't recommend using it if you are on the OS.
If you are on Standard however, you can get it from here for free.http://vectorlinux.osuosl.org/stretchedthin/MMBD/mmbdvl70std.iso
It does have devede on it, and I think you posted about that elsewhere.
For output control, in VLC go to tools >> Preferences, click on the Audio Icon, Select "ALSA audio output" as the Output module:, then you will be able to select from detected devices in a dropdown selection window.