Cannot re-send activation email* cannot contact admins
 

Recently I have tried to register on 2 different web forums that are running vBulletin* and I never received the activation email. Unlike on some other forum software* I have not seen a way to have vBulletin re-send me the activation email* and I see no way to contact the site admins about the situation. How do I deal with this problem* besides trying to re-register with a different name and hoping the activation email gets sent?