ok guys i have a new smarty pod and was wondering what the best program is i hear a lot of guys talking about 4.2 and 4.3 now what is actually the best? and can i download this to make it work on mine? mine says smarty 4.01 when i load it up in the truck. can i load up the 4.3 onto my smarty and how do i do this off my computer sorry for all the newbie questions thanks guys