Nice going, Gaz! Congratulations on your high score.
By tomorrow or mid-week you should receive 2 e-mails from Sun. One e-mail will give you your Sun Certification ID and have information on how to register for the Certification Database. If you do not get that e-mail, send a message to email@example.com to ask about it.
Two to three weeks (or longer if you are not in the U.S.) after you register into the Certificate Database, you will receive in the postal mail a welcome kit containing your SCJP certificate and a small Sun Certified Professional ID card. Your score is not printed on them. If you do not get that package then send a message to firstname.lastname@example.org to ask about it.