For the music, it needs to be set up as folders as Tidder said. Eg if your music directory is musicdir:
The search function does not properly work, I forgot I left it in the skin sorry about that.
Thanks for the fuel counter issue, That's fixed for the next release now. Edit: If you add this:
in the controls of NumericOSKWindow.xml that will give you a backspace button. Or you can wait for the next release
<properties name="backSpaceButton" text="BkSp" fontsize="18" fontcolor="0:0:0" font="Sans" textvalignment="center" texthalignment="center"/>
<geometry x="450" y="100" width="100" height="100"/>
<function cmd="SingleLineOsk:cmd keypress !Backspace!"/>
As for IG, ignore the test settings, they are not used and I will remove them. The default skin is set up to use iGuidance 4, you just have to change the path in the EmbedGPSWindow.xml file in Skins\Default to point to your .exe file and it SHOULD work.
Glad to see that someone is trying to use it. Tidder and I are working on the documentation, it will quite soon become a priority to get that done.