It's not really an upgrade nor even an update - it just has a couple of extra bits in it is all
Selling 9 - normally you have to contact customer services regarding a licece transfer (so theat the new owner can register it in his name rather than yours). I don't know how Roxio handle it but I do recall an instance from years ago (in a letter to one of the computer magazines) where someone tried to transfer the licence for Sage and were quoted almost the price of the suite for doing it