I think previously PackChrysalis broke something on my MosBook setup as OWB started to fail with web sites secure login. Now after MOS update to 3.7 the system does not boot every time (sometimes ends up in grey screen). So, perhaps I should do clean start.
(just a little painfull to backup the data with USB1.0 speed of my old PowerBook HW. Especially when the USB is not rock solid either ((or perhaps my USB issues are only with Android devices where transfers hang with multiple files)))
You could backup to other partition (Work: for example) and manually format the System partition and then do new install with manual partitioning option, which shouldn't affect to that Work: etc because you already have correct partitions and no need to touch them. I'm pretty sure it did work that way, but I can test again before you start to blame me if I didn't remember it right

What is not supported on powerbook. I am running on powerbook and have not found anything that is not supported or does not work. Sounds like you either have a bad install or faulty hardware ?
Some older Powerbooks are missing audio.. those titanium models which weren't earlier supported at all, but now they are enabled even though not all features do work. If you read careful the hardware compatibility page, Powerbooks' on-board audio isn't told to be supported at all, so basically it's just bonus that it works on aluminium ones

Anyway that's why you are forced to test the machine before you can register so that you know what you get. At least KimmoK knew that audio doesn't work on his Powerbook before paying the registration, but of course wouldn't hurt to have that kind of things more clearly said on hw page.
I wasn't a fan of that shortcut bar at the bottom, but would like something for easy access to commonly used apps. That one just didn't react in a way that I found comfortable, even after changing some settings.
Do you mean "shortcut bar" from Chrysalis? Anyway, you have Panels in Ambient settings and you can configure your own bars with those.