When I bought 4.0e, I saw a bunch of ads and posts about a free upgrade. So far Sony has refused to give me a straight answer on how to get it and it has been months. When I bought Vegas, I know it was between the period allowed for the free upgrade.
And to those of you speaking about talking to CS, I have, many times to no avail. The folks I have spoken to claim they have never heard of the upgrade offer I am referencing or have waited to long to claim it.