HI Psygorn, the one that Brian posted above is the one you need, the attachment ArrayGem_node.txt here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=9581.415

So delete your ArrayGem.js that is giving the "invalid character #" message, download ArrayGem_node.txt from Brian's post above and rename it ArrayGem.js and put it into the node editor extensions folder.

- Michael