Sorry for misunderstanding your original question there bio. Well what happens is you have to give your details via Paypal. I'm not sure if there is another way to pay, but I know that it is a safe and easy way
You view the paid subscriptions by clicking Premium, as I am sure you know. Once you are viewing that you have three options.
To pay for a month >£1
To pay for a year >£10
To pay for a lifetime >£16
You click to pay for one month, and then give your details. You will then be made a Supporter for a month, and once that is up you will return to being a normal member. If that wasn't the right thing you were asking, then I apologize again.
But I hope that helped you in some way.