Dave Scocca received the following word from Now Software on Mac OS 8 compatibility with Now Utilities (this expands a bit on what I have posted on the Mac OS page, but seems more ambiguous as to whether or when an update will be released):
"At this time, the award-winning Now Utilities is not fully compatible with the recent OS 8 release. We are currently evaluating our options and will announce our plans in the near future. In the meantime, we recommend that you do not install Now Utilities with OS 8 or if you do, that you do so at your own risk. We regret any inconvenience this process may cause, and warmly thank you for your continued interest and patience."