Hi Ian,
Firstly, thanks for embarking on this project to bring ZTree capabilities to Mac OSX. I am also a recent switcher (about 2 years on Mac) and have used ZTree and before that XTree all the way back to version 1.0!
Secondly, congratulations for getting the project this far, pretty much on your own, it seems. I did already download a copy of 0.09 but real work has taken over this year and I've not had chance till now to post any messages of support and comment. Given that you've moved the program forward so many versions in the interim, it's only fair that I download the latest copy, read the documentation

and roadtest properly before making specific comments. I'll do the download and install straight after this post, but I may not get the roadtest done until Christmas! (I'm on holiday now until tomorrow - these things are only getting air time during holidays!) So if you do reply, please understand that I may be slow with further responses.
Anyway, back to the main point - I'm very excited about the prospect of native ZTree style capability on Mac OS. It's one of the few missing parts that might prompt me to start programming again myself. I have to run Windows 7 for some parts of my work, and I do that with Parallels for Mac, so I'm still a current ZTree user. From time to time, I'm using ZTree to explore the Mac disk, but I'd much rather do this from a native app like QuollEyeTree.
Ok, off to do the install now.
Best
Ian Taylor
London, England