Buzz and everyone,
In our conversation you helped me solve this problem.
My bad - if you downloaded and installed the Update (rather than the Full Install), you will get this problem and the ZIP tool and thus the Data Center will not work! I forgot to include the ZIP tool in the Update Install package
I fixed that and the Update Install download now works. Anyone who was experiencing any error messages re ZIP or Converting files in the Data Center should do the Update Download again and install that.
If you downloaded the Full Install, you would not have experienced this problem.
So sorry for that omission. Life in the fast lane...
Ted