Download Keys

Recently some people have been purchasing scripts and then issuing charge backs. To combat this any script that requires a download key will require that the user be logged in, if they're not, they'll be prompted to login or register. To make the purchaser identifiable I'll probably append their user login name to the google checkout item description. That way if you do receive a charge back you'll be able to search for that purchase number and via the description provide me with a name so I can block them from the site.