No - there were too many body changes between the last Windstar in 2003 and the renamed version Freestar (and Mercury Monterey) in 2004.
Parts are interchangeable though within the 1999 - 2003 Windstars.
Yes you can but the captains chairs must also be from a freestar. The windstar seats will not fit a freestar.
No, won't fit. Freestar is totally different and the electronics are not the same.
ford windstar fuses for electric windows location and numbers Windstar LX
Yes. The mirror on the 2001 Ford Windstar is the same mirror found on the 1999 Ford Windstar. They are interchangeable.
Geo Metro and Suzuki swift windows are interchangeable
I suspect the information in the "Related Question" below regarding Windstar doorlocks will apply to the Freestar - at least a good start...
several names but one is mostly just renamed: Aerostar, Freestar, Windstar
Depends on the year, but generally not.
See "Related Questions" below for the same discussion in the Windstar category - equally applies to the Freestar/Monterey
Since the Freestar is just a Windstar with a different name, try the "Related Question" below for getting started with replacing the window motor.
See if the "Related Question" below regarding the radio in a Windstar - expect it to be exactly the same...
I wish I knew. It was replaced by the Ford Freestar and Mercury Monterey Minivan, but as far as I'm concerned, the Windstar was a better minivan comparing it's 2 replacements.