A few weeks ago we sent out this invitation to our existing list. We now realise that some people didn't receive this email and some may not have been on the list at all. Sorry. Sorry. Sorry.
So, if this is you, please let me know (including details of your original purchase order in whatever form you have available - even memory of year/month and your name so we can cross check my records) and we will send you a link to purchase the upgraded files for only $4.