If it says you are out of warranty, you may have to come up with your receipt to prove you bought it less than a year ago.
Another thing, since you bought it more than 6 months ago, Apple will want to bill you a shipping charge. I'm not sure exactly the charge but a cusomter told me it was $50.00. If you buy the Applecare warranty extension, you don't have to pay the shipping. Apple charges $89.00 for the warranty but dealers do offer it cheaper. Look around for a better deal
I suggest you call by phone, my personnal experience is that phone servicing is 10 times faster than web one (Replacement for my headphones came in 1 day from california via phone, one of my friend waited 1 week to get his from web service). Also if you got a 3rd party warranty (fe. futureshop PSP) you can phone them to see if they refund the apple service fee after 6 months (futureshop does).
I serviced my mini some weeks ago and it costed me 45$ in shipping&handling charges from apple. Futureshop requires me to get an invoice and my futureshop recipt (or warranty number, phone them for that) and fax them the stuff, they said that I should get refunded within 4 weeks.