I also received my upgrade a few days ago, and had the same questions that you did. I received this reply from my main resource:
"No more versions beyond 7.5 of Seagate Info will be produced. Seagate Info 7.5 will be supported (bug fixes, etc.) for the long run, but will not be enhanced. Crystal Enterprise 8.0 does not have all the features of the current Seagate Info product. A 'seamless' transition from
Info to Enterprise is expected by Version 9 of Enterprise.
The one benefit of Enterprise is one-click to access reports on demand. Info does not provide that capability as you know (schedule first, then view the report Within a few months an interim release will add a DHTML report creation wizard allowing you to create reports using an existing report as the database connection. In addition, a much improved OLAP reporting tool will also become available."
So I'm going to install Enterprise 8 on a standalone test box to become familiar with it, but I have no plans to put it into production. There's also a Seagate document that addresses Info 7.5 to Enterprise migration, but I haven't downloaded it yet. Good luck.