What does it say for Mac specifications on the box?
Here http://www.adobe.com/products/premiere/tech-specs.html it says your version of the MAC operating system won't work
You need to ask Apple how to update your computer to a later version of the OS
Thank you so much!!, you were so right!! I call apple and they are going to ship me the update version.
Even easier, you can buy it at the App Store.