well, that tool works cleanly and at least shows up in a toolbar somewhere. I did load the thomthom installer widget, which is good. I think the biggest part of my question has to do with the fact that some of these plugins don't really make themselves evident in any sort of "hey, here I am when you want to use me" sort of way. I think they are loaded, and come up when contextually appropriate.
now, if I can build some attributes into a couple of components i'll be a little more satisfied.