Silvertone and Jazzmandan: Then you have been very lucky or the man upstairs just takes kindly to you two.
All of mine, in the header over the "Agreement" state that it must be installed over the previous version. They are not stand alone programs (full install) but only upgrades.
I did get another response on my support request from Gail @sales PG with some new suggestions and she was very helpful. One was to restore my back up version after disabling the UAC. So I will work on her suggestions. A further response from Rob in support confirmed that the discs will not load in Windows 7, 64-bit because my first full install disc was released so long ago. He suggested ordering a full install disc. Which means all my discs and the money invested are useless. I am sick to think I have wasted all that money and they are not offering some substitute for resolving this problem. Like a full install disk (first time installation)in the 2009.5 that they have on record for me. ( The copy they have on file indicates that it was a full install but it was an upgrade.) Then I could update to 2010 with my update disc.