I'm in the UK. I booked my test using Prometric's website (which is extremely irritating). I turned up for my test today, fairly highly strung with nerves, and the college has not been registered with Prometric for 8 weeks! They stopped doing Prometric tests because of all the admin mess-ups. I was the 2nd candidate to turn up today! So, don't use the website, and maybe phone the actual college to check up too.
Thanks for the advice. I've found Prometric's website to be pretty naff. There's an 0800 phone number for phoning from within the UK, which I'll use for booking my test (not too long now, I hope), listed below just in case anyone else wants to avoid the website:
0800 592 873
-- Matt [ August 17, 2006: Message edited by: Matt Caripto ]