License transfer from 5 to 7

hi there I am currently, using cubase 5, my friend has now sold me his license for 7, can someone please tell me how do i transfer the license for 7 that i bought and putting that on my usb e licencer, also once i have this new license where do I actually download the Cubase 7 the program install file.

Now what exactly did he sell to you…?
Generally you simply drag the license from the one USB eLicenser to the other via the eLCC software.
The download is available on the Steinberg site downloads page.