Accounts are created straight from your CPU-Z validations, there is no open sign-up form.
Getting one takes three steps:
Run CPU-Z and submit a validation, filling in your e-mail address.
Open your fresh validation page and hit “Create account” in the menu to claim it.
Pick a nickname and password, then activate through the link we e-mail you.
The “Create account” button only shows on your own validation, from the same connection, for 2 hours after upload.