First I want to say, your plugin is great almost perfect for what im doing.
I only have a few issues:
Styling; How do I style this plugin it seems to use the styling from my theme style.css (which makes it look rather choppy) but I can't find the class references anywhere in the plugin's code, for example the child taxonomies are not indented the way the appear in your screen shots.
Count of Taxonomies; I would like to replace the (+) with a count of the post in the listed taxonomy, is this possible?
If you would like to see what I have so far here is a link: http://radiantfind.com/gems/reviews/
Thanks again for this awesome plugin.