Updating a SMARTY s-06
 

Hi all, I currently have a Smarty S-06 programmer that was purchased around April this year. I have never updated it and want to know if I download the latest software update to a borrowed laptop ( I only have a Mac laptop) can I save the downloaded files and whatnot to a usb so that I can have or use them in the future if I have to borrow another computer to update again? Sorry to be longwinded but do not want to screw anything up.
Also what are the advantages to the current update VS. what's already loaded in the programer? I do not think I need to go the TNT route yet as I'm happy with it running on level 5 unless I'm towing.