I was able to get the Polls plugin working on a 1.0.2 install…. so it should be possible.
You shouldn’t be editing the original template under /bb-templates/. You should move your custom theme to under /my-templates/, and then re-upload the old Kakumei under bb-templates.
It’s very helpful to have Kakumei around, when you’re attempting to eliminate themes as a source of conflict with plugins.