If you received ArtRage with a Wacom tablet, they don't share individual user details with us, but they print the registration key on the back of the CD sleeve and call it a 'serial number' ( 20 digits long ). If you do not see the serial number there, I would recommend contacting Wacom support directly, as they will be able to help with any packaging problems.
If this is what you are already entering, please email me at firstname.lastname@example.org with the details and I'll help you directly.
Your can use your registration key to register ArtRage with us, and also to download the latest version from our Member page at http://www2.ambientdesign.com/members
1/ Click on 'Register' and follow the instructions
2/ Log in and go to 'My Products'
3/ Add your key, and click the download link to access downloads for all the current versions of ArtRage