So, I have some questions:
1. why there is no any more skins for kdenlive (I remember, there was some in dark ore white color)?
2. why I can't open audio and video effect folders with doubleclick? only do that to push "enter" on keyboard.
3. How I can use that vectorscope for videos? Can't find how to start use it :/
here is my screen: http://img202.imageshack.us/img202/5446/56218062.png
V 0.7.8
MLT 0.5.7 (don't get what that means)
Ubuntu 10.10

1: Most likely because noone did it yet. ;)
2: http://www.kdenlive.org/mantis/view.php?id=1615
3: View > Vectorscope.

MLT is doing all rendering. kdenlive is actually an MLT GUI ;)

The skins are created from the colors of the installed KDE/Qt themes, so they're nothing kdenlive specific.