it works for me. Directly from your links. Part of file is from Google Earth save place:
<Document>
<name>test user ikony.kml</name>
<Style id="hl">
<IconStyle>
<scale>1.2</scale>
<Icon>
</Icon>
<hotSpot x="0.5" y="0.5" xunits="fraction" yunits="fraction"/>
</IconStyle>
<ListStyle>
</ListStyle>
</Style>
<Style id="default11">
<IconStyle>
<Icon>
</Icon>
<hotSpot x="0.5" y="0.5" xunits="fraction" yunits="fraction"/>
</IconStyle>
<ListStyle>
</ListStyle>
</Style>