Registrations through a affiliatelink dont get counted, reffered by is empty, unique clicks get cou

Hi, The topic say it all... I testet for one day now but cant get it to work. So what cout as a signup? If a user registers or if he create a page? As i discribed, i testet it 14 times, everytime with a cleared browser cache. Clicks got countet but no signups and no reffered by... What i am doing wrong?

I tested it with and without ssl, different themes, with coockiesettings usw...

with kind regards