1 works fine on windows 7, 2. There is support staff ready to help you if anything happens. 3 as far as payments go paypal is the preferred choice. You would have to speak with either VIP support or leave a message in the irc. As far as i know there is no refunds, but there are extensions if for w/e reason the hack does not get updated in time. But as the user you are responsible for finding this out etc.