Jubilator looks great!
I have an issue: I'm using FF3.6 RC1 and the folder indicators are not displayed correctly:
I can see icons with an arrow, which seem to be barely visible under the folder text. And they do not seem to be placed correctly for folders and/or files.
I'm glad you like Jubilator. That really makes me happy.
Sorry about the folder icons. The current "solution" was just sort of a quick thing I did so I could have something. I fully intended to make the tree listing more tree like but the tree plugins for jQuery were pissing me off. Need to figure something out for this panl.