there are a few errors in the skin - i dont know how you got yours to work!
<element id="TabsBar.TabInCaptionBar.Highlight" bg="191,0,0" fg="259,179,0" bdr="191,0,0" />
<element id="MiniPlayer.Background" bg="55,0,0" bg2="39,0,0" fg="250,250,2500" bdr="69,0,0" />
these have invalid base64 strings:
FormCloseButton
FormMinimiseHighlightButton
FormMaximiseHighlightButton
FormCloseHighlightButton