hey i have downloaded that one tune from the forum for a stock na tune but have not tried it yet because my software will not boot up i cannot even start the wizard. i have windows 7 and i downloaded vm ware and a copy of windows xp and when i plug in the chip to my usb the files come up but i cannot open them or anything and the wizard will not boot up at all or does not even pop up have any ideas?? on that and more tunes i can download???