SasaVtec

I installed a phpnuke using fantastico and I changed everything made admin user and pass and did all those small things and when a user came to register to use the website and had recieved the activation e-mail with the link, once he clicked the link it took him to the phpnuke.org website and it said there is no used data in our database and something like that am not sure whats wrong if anyone can help it would be greatly appreciated. Thank You the website is www.team-rubicon.com/clan