Russ,
Firmware is the software that's stored in the device itself that tells it how to operate. It stays in the device (camera) and is ready when you turn it on. You'll have to download the firmware to your pc, connect your camera to your pc and download it next to your camera. It will replace the software in your camera with the latest version. Updates are simply new versions of the software that your camera already has. Newer, better and with more features and fewer bugs, one can hope.
Roger
What's a "Firm Ware" and what's an "Update"
????????????????????????????????
And this coming from a guy who hasn't shot a roll of "real film" in two years.............
--