The only thing you can do is to ask Embarcadero. It might help if you tell them what website you mean when you write "Website". Like us, they can't guess that.
I recently download C++ builder XE3(trial version) from Embarcadero website.
But when i start install this in my computer one of the installation step ask me
for some details(User Name,User Company,Serial Number).
Now i download trial version from Website and it is asking for serial number
but i have not..