Ok, I upgraded one dev server that has literally only one client on it. I got some sort of error message halfway through, clicked ok and the upgrade came to a standstill. I had to terminate from Task Manager, tried running upgrade again and would not let me. Tried repairing 6 from Control Panel and got error that an install was already running. Rebooted server, repaired 6, ran 7 upgrade again which seemed to go through no problems except for the fact that it detected that it had nothing to migrate, I believe this was because it had already migrated info during the last install. Looking at new console now is beyond foreign to me. This is going to be a lot more work than I thought.