'nother photoshop question., serial numbers. Options

[deactivated]

yeah, i hope this isn't one of those so called createblog-illegal questions. but whatever, because i don't think it is. okay, well my aunt has a legal copy of photoshop cs [for mac], cause she's in graphic design. but she lives... sorta far away from me, and i don't see her often. well, back to the point: i'm getting a macbook for my birthday, and i really want photoshop on it, because my windows version won't work, unless i get that... thing where you can run windows and mac, but it's just that i have to get the windows software too, and that's just a big hassle. so i was wondering if i could just download it from the adobe website, and use my aunt's serial number, and have it work. :] just goes to show how lazy people can be these days.