Hi Alex,
This should be under the BART area really.
I just tried the form that is on this page
http://www.avast.com/i_kat_205.php?lang=ENG
and recieved an email with a link within 10 mins.
To try and solve the problem, make sure you are using a 'real' email addess IE not a hotmail-yahoo-freebie email address.
Hope that helps
