Thanks for help. I found my registration e-mail and suucessfully downloaded and installed the upgrade.
I did have one little glitch. My download manager , Download Accelerator Plus (DAP), would only download the header of the ZIP file. I had to turn off the download manager to download the full ZIP file. I remember now that I had the same problem when I initially downloaded the production version. I do not remember if it was a problem with the previous update. I have never had any problems using DAP except at the TOPOFUSION site.
Thanks again,
BobM