hello folks im going back to pdmg in fs9 for now, and will be using the 737 900.i have it on a dsk after i purchased it from pdmg.i have all of the proofs of purchase , i just need to know what i need to do to get it back up and running .i just loaded fs9 and the update and im wanting to know how i load it back on , or do i have to re down load it from pdmg.Thanks........Robert

Install it, when asked for user id use the same email you had when you bought it if that changed, your order number can be obtained from the record of your purchase if you log in and look at your purchase history. There are no time limits on validation. Send them an email if you have problems with your order number, but I don't expect you'd have any.