Hello linkjgg , The product code above stats that it's a retail version, not the Teacher & Student version. "STAM" is the suite code, which stands for Master Collection. Also as you want to purchase the CS4 software, need to inform that it's an quite old product, thus we suggest you to purchase the latest version of your software, for better support and compatibility with the latest Hardware and Operating system. However, if you still want to use the Creative Suite, then please purchase the CS6. Creative Suite may not be available any longer for Educational Products as it's an quite old product. However you can purchase the retail version for sure. And please make sure, if you are purchasing any second hand software[Educational products can't be transferred], please get the Product transferred to your Adobe account, to get the support at Adobe Support Channels. Regards, Mukesh Suthar
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