I replaced the starter ,alternator ,main fuse,and new battery ...and I'm not getting any fire from the battery to crank it ....does anyone know what this problem is ??? ////98 ford explorer

Test the starter electrical circuit's . Main positive cable to starter , control side .Do you know how to use a DMM - digital multi-meter ?
No Crank Slow Crank

What smoked ,the Fuse? SHORT ? what fuse ? Main fuse - explain ? Still no fire ? Doesn't crank , no spark ,what ? Does the starter spin the engine when you turn the key to the start position ? a crank no start condition . or a no crank - no start ! Check fuse F1 80 amp in the under hood fuse box.

It is normal for the accessories to go off when the ignition is in crank mode, if your starter is not cranking I would test and make sure you are getting power to the small post on the starter when the key is put into crank mode. If it is I would think it is time for a new starter. If it isn't then you need to look at the ignition switch.

Lots of things could cause a no-start, Hendrik. Is your "Check Engine" light on? If so, please have someone get the OBD error codes from the car's computer.

Does it crank but not fire?

If it doesn't crank, check the battery condition, battery connections, ground connections to frame and engine block, starter solenoid, starter motor.

If it cranks, doublecheck your fuel pump installation. Make sure the new fuel pump is properly connected and properly electrically grounded. Look for a fuel pump fuse. Check for proper fuel pressure at the fuel rail, check the fuel flow rate. Check for spark, check or replace spark plugs, distributor cap, rotor, plug wires. Check valve timing, replace timing belt or chain if necessary. Check compression.

Give this a shot make sure that the ground wire that connects to the engine and the fire wall did not burn into. If it did it will not charge may sound dumb but the engine must be grounded for the alternater to charge.

Do you know how to test electrical circuits with a volt meter ? If you hear clicking ,where do you hear it ? Down near the starter ,,in the under hood fuse box ?
How to voltage drop test starter motor circuit
Starter Voltage Drop

Did you check primary voltage to ignition coil? red wire with lite green tracer, use a test lite to check voltage, goes hot with key on, circuit is fuse protected.

First you can not test an alternator by disconnecting the battery cable. That is what we did back when cars had generators. Today you can fry the computer and alternator running the engine with the battery cable off.
Meanwhile, I would look for a fuseable link or main fuse problem. The alternator circuit may not be connected to the fuse box and battery.

you battery have disconnect inside replace battery check alternator charging Am.

if your car turn over and it sound like it want to start then i think it is your ignition coil so got car scrap yard get another that is your vehicle and put it in.