Adobe Creative Suite is not supported on macOS Sierra, this includes all versions CS1 – CS6.  If you are planning to upgrade to macOS Sierra it is highly recommended that you install the latest Adobe Creative Cloud products prior to upgrading.  There will be more information released soon in regards to Adobe Creative Cloud support.

Please visit Adobe’s help site for more information on CS products version 3 – 5.5 to find the OS support for each version.

If you do plan to upgrade and still want to use the older unsupported products.  You can visit Adobe’s instruction page for advanced methods for installing CS products.