I need help with installing CS6 to a new computer. I have owned PS since CS and have upgraded through all of the versions. Do I have to download the old versions too now? I don't remember doing that on my new desktop last year. When I try to activate with the serial number it says the number is valid but the product is not found. I have tried my previous version numbers but they are invalid. There is a drop down to choose what product I am trying to activate but CS6 is not even listed. CS6 Extended is but that is not what I have. Can anyone help me with this?