I have a non-standard install of TMG 8 and, as others have, crashed and burned with this latest update. I spent an evening trying to find all references to ver8 so I could delete them and start afresh. Apparently, there are more, well hidden, since I've yet to manage a clean update. I'll have more time tomorrow. Luckily, I've yet to try to update my primary computer. Losing the laptop, for now, just tells me that this update is not ready for release. A good release does not need to be worked around.
Here's my concern since I don't plan on updating my desktop. It is not worth the hassle factor for the limited added utility. My laptop and desktop share my primary database over a network. I only keep a backup on the laptop. Provided I can finally get the laptop to work again, can use the same database with a 8.01 and a 8.02 install?