Shawna -- I was getting worried about my test being received, too. I took REG on 5/6/10. After logging out of the exam, I received the scary canned message from Microsoft saying there was an error (you know, the one which asks if you want to notify Microsoft of the problem). I had thoughts of having to retake the exam all over again. I reported the problem to the Prometric assistant, but she said they backup up everything every three minutes (and not to worry). So I've been sweating it out as I've checked the CA Board site several times a day, to see if they received it. I'm happy to say their site now shows that I attended the exam.
I'll bet you just got an answer from an uninformed staff member. I wouldn't sweat it. You'll be fine. Best wishes.
FAR 86, BEC 82, AUD 80, REG 83 Done, thank God - CA