The suggestions tiddler shouldn't be needed. I don't even think this
is used any more, so my only thought is that you must be using an
older version of the plugin? However it's possible another plugin is
breaking it.
I think in it's current form the macro doesn't work at all in the
ViewTemplate as it was designed for the EditTemplate as it relies on
you hitting the save button to save. I've had lots of trouble with
this in the past, and I think I gave up trying to support updates via
the ViewTemplate.
<div macro="niceTagger"></div> should be all you need to add to the
EditTemplate to get it to work
Let me know how you get on...
Jon