2006 Ford Fusion SE Auto. I have it jacked up now ready to do a drain and fill of the ATF fluid but I'm not 100% sure about the drain plug. If you know this car please confirm, is this it in the pic? The plug faces to the rear not down.
The drain plug will be part of the housing of the transmission. This is the closest image I could find:
Note this is not exactly for your car, it's for an '07 Fusion 6 speed auto transmission. So it's not exactly correct, but I'm hoping that the '06 and '07 are close enough that this gets you into the right area.
The pic and any other info you might want to gain is here:
This is generally a reliable site for information, but it's a forum for that site, so your mileage may vary..
The car is front wheel drive, so you're going to be looking for the plug on the very bottom of a casing that's going to have the half shafts coming out of it. Look carefully, and you can always post an edit with pics of what you find for confirmation.