Tom, I reviewed your account and you have an educational license of Design and Web Premium CS6 registered to your account. You will need to use the installation files that were provided with your purchase to install the software. The retail installation files, that are available from our chat support team at Contact Customer Care , will not accept an educational serial number.
if you still have the DVD for your installation files then I would recommend you use a computer which does feature an optical drive to copy the files to a USB drive. You can then install from the USB drive on your new Surface Pro. Alternately, you may want to consider purchasing an external DVD reader/burner.
If you don't have the DVD available, then please contact your educational institution to see if they have the files available.