Yes, once you have read the ecu and copied the ROM contents you will have the calibration file. I personally don't think of this as 'firmware' as I tend to consider that as being more for embedded type systems (e.g. the BIOS on a pc)
Yes, the definition (aka strategy) files are the ones that make it easier to edit the calibration. Strategy files are usually specific to an editor program.
Ford use their own propriety systems for programming their ecu's. Here's an example of the kind of stuff they used in the past
http://oi47.tinypic.com/6qbr6a.jpg