1> I have Version: 0.3.1 – is this the latest?
2> It’s placed in mu-plugins folder.
3> Is activated!
4> Ah! Got to your 4th check, and it seems to have worked… i made a post from testblog123.artcider.com and it has appeared on tags.artcider.com

I wonder why the main posts aren’t showing? Good to see results! What do you think could be happening with main blog on artcider.com