This is not a nulled version. It would be best that this be only installed on a test box, just for testing purposes. As tempting as it might be, wait for a proper null of an RC or Gold Version before attempting to go live with 3.7.
Well, people really need to learn how to post nulled vBulletin the right way. I guess he'll know from now on - as soon as his membership is revoked without refund.