You should be able to use the download link you got with the email from AGEOD, if they don't work any more then send an email to
support@ageod.com with your purchase information, pretty much send the first email you got from AGEOD and then they should be able to help you.
I just hope that AGEOD haven't changed their purchase and download system otherwise my advice is useless.
"Saw steamer, strafed same, sank same, some sight, signed smith" From "The Thousand Mile War" by Brian Garfield.