Yes, There is a CPU relay under the hood in a fuse panel. I am not sure of the exact label of the relay but it should be large and black.
ford windstar fuses for electric windows location and numbers Windstar LX
The alternator does not actually have a fuse. The alternator has a regulator. The regulator is mounted on the top of the alternator.
No - not at all similar
Yes, the voltage regulator is integrated into the alternator. See "Related Questions" below for more
it is either 110 amps or 135 amps
The voltage regulator is built into the side of the alternator.
What component are you referring to? Alternator themselves do not have solenoids. Starters have solenoids, and sometimes ignition circuits will utilize solenoids.
If by "housing" you mean the alternator itself, yes, it is actually rather easy. See "Related Questions" below for detailed alternator replacement information
I was told $337.95 from a dealer in eastern nc.
no it did not
I have a 99 Windstar and when my mechanic replaced the alternator the battery light would not go out he took back about 2 alternators, stating that the alternator was not good, because the battery light stayed on. Finally, he had the last one he put in tested and it was fine, but the battery light still came on. He called a Ford mechanic and they said you have to use a ford alternator, because the computer can not recognize other brands of alternators. Once he did the light went out. He said occasionally it will recognize an off brand, but when it doesn't the battery light stays on and it can cause problems with the computer, and I believe he said the cyliniod could burn out. He just bought a re-built alternator from the ford dealer for about $199.00
Serpentine belt See "Related Questions" below for more about Windstar serpentine belts - routing & installation information.