If you have Adobe CS2 and plan to install to a Windows 7 machine, please note the following:
The installation program will NOT recognize the Program Files (x86) folder and will not allow installation in the Program Files. Through browsing for the folder you may get the program to install. However, when you try to run one of the included apps you will be presented with an error message stating that the
personalization info cannot be found or is invalid.
To correct this, uninstall CS2 and reinstall using Progra~2 for the installation folder.
Thanks to Google for providing the solution.