Hey, this plugin works great and its very existence is what made me finally decide to create custom post types and taxonomies to organize my lesson plans.
I used an earlier version of it on my test blog (1.3.1 I think) and it worked beautifully.
However on my main blog, the widget doesn't appear on my home page/index page. Except for the widget title and the submit and reset buttons, there's nothing there.
Other pages/posts etc. it shows and seems to work fine.