Hey guys just thought I'd post that this is working fine for me on 3.5.4. I previously pointed out the editor looked different in another post, but since realised this was stated as a bug in the first post.

So the only remaining issues I am aware of on 3.5.4 is that is does not parse BB code or smilies and the search seems to give errors generated from out date function calls.
Works great besides.
But on another note, I have recently installed
this hack which is a fully working and more feature rich version. Check it out. No search included, but that doesn't work on this hack at present anyway.
I had trouble uninstalling this, each query failed and had to edit them all out of the product, although this may well be due to an error with my setup!