You'll be asked a couple of trivia questions about WFF that you should find easy to answer.
The questions are meant to discourage spammers.
You should see this if you succeed:
More importantly, you should get this email:
NB: Send an email to wff_collector@yahoo.com to speed approval of your registration request.
Be patient: You need to be approved. This process is done by hand to discourage spammers, so it's important that your information looks like it's from a mouser. It's also a good idea to make sure your ISP doesn't host a lot of spammers. This is not a good time to appear to register from Russia or Somalia.