why can i not download the demo? i registered in that fuckin insider, wtf?!

First: Check if u really have insider. Under your profile picture/level indicator it should say "Your insider subscription expires on 20xx-xx-xx". It might just take a while to register your transaction.

Two: If it says you are insider, check that you dont just have some firewall blocking the download.

Three: If nothing works ask SK|bds :)...

And you might consider next time writing a thread like this in the insider forums. More SK personel read that forum.