Do you need the multi-user capability of the old version?
I just migrated our small group from Now Contact and Now Up-To-Date to iCal (and Mac OS X Server) and Bento 3. Bento is very easy to set up, comes with decent templates, and is easy enough to customize. I have it running on the server with iCal.
I'm sorry that they couldn't make the new version of Now X complete and profitable. I have been using Now Contact since 1995, and I don't think it needed a complete rewrite of features. It just needed to be re-written for stability and modern architecture.