The first one is a UIImage (and i think its the same one the clock app uses, but not the same one safari uses). I'm looking for it too, ill let u know if i find it. and i think the second one is "NowPlayingControlsFade.png" in the MobileMusicPlayer.app folder, but i don't have time to check right now. let me know if im wrong, and ill get u the right name for that later.
The song progress meter is:
UIScrubberBlueCap.png
UIScrubberBlueCapRight.png
UIScrubberBlueFill.png
UIScrubberWhiteCap.png
UIScrubberWhiteCapLeft.png
UIScrubberWhiteFill.png
The knob is:
UIScrubberKnob.png
UIScrubberLargeKnob.png
I cant till tonight.. My touch wasnt JB'd - I just did it (while at work) because the Untethered for the 2G was released!!!! but.. no Wifi close enough. I cant get winterboard till tonight
but thanks for confirming. I wonder where the border comes from?