[ronie]

6:17:53 T:3396 M:1405186048 WARNING: Skin has invalid include: TVTunes

Or did you need the whole thing?

nope, let's start with that.
i have no clue where that invalid include comes from...

check two things,
MyVideoNav.xml, near the bottom should be this line:

Code:

<include condition="Skin.HasSetting(TvTunes)">[b]TvTunes[/b]</include>

and in Includes_Workarounds.xml, also near the end of the file:

Code:

<include name="[b]TvTunes[/b]">
    <onfocus>XBMC.RunScript(script.[b]tvtunes[/b],backend=True)</onfocus>
</include>

please make sure the capitalization is exactly as above.