Trying to buy 5.0 - website very slow, timed-out

I tried to buy as soon as I got the email, and the website is extremely slow -- are you inundated with orders?
I made it through the whole checkout process, went to PayPal, back to the website, entered my name for the new license, and then got to
https://store.noodlesoft.com/store/stor ... ase_paypal
which timed out and said
500 Server Error
Really sorry
Update: I hit the 'Back' button and tried again, and it worked. I only received one "receipt" email so I'm fairly sure I was only charged once.
I made it through the whole checkout process, went to PayPal, back to the website, entered my name for the new license, and then got to
https://store.noodlesoft.com/store/stor ... ase_paypal
which timed out and said
500 Server Error
Really sorry
Update: I hit the 'Back' button and tried again, and it worked. I only received one "receipt" email so I'm fairly sure I was only charged once.