Doing a coolant flush, but I can't find the Engine Block Drain Plug.
Does it have one?

I'm looking at the diagram in my Haynes Manual (Figure 26.5b), and I can't find it on my car.

'96 Ford Escort LX
1.9L Manual

A satisfactory "coolant flush" can be be done by sticking a siphon hose down the rad with the engine warm.Use a vaccum pump,quick mouth suction to get started.This if the hose goes to the rad bottom will remove almost 2 gallons.Refill with BOILING water! Fast from a kettle.Run the engine to circulate this.Re-drain and refill with 50/50 af/water when done.Fill with hot water as this keeps the thermostat open and is quicker.Avoid putting junk in the rad to "flush" it.If the cooling system has reached that point..NOT! uncommon is for first the heater core to become plugged.Not ucommon plugged to the point wher it must be removed and boiled out.Iffy cores will also begin to leak.Rads can get plugged up too this way.IF you have already put the junk in..AND you haven't loosened up too much crap with the junk already..go again..maybe twice with the boiling water flush.

Doing a coolant flush, but I can't find the Engine Block Drain Plug.
Does it have one?

I'm looking at the diagram in my Haynes Manual (Figure 26.5b), and I can't find it on my car.

'96 Ford Escort LX
1.9L Manual

Look for the engine drain plug (Allen head pipe plug)(requires a 3/16" allen wrench) below the exhaust manifold near the engine to pan interface. A method of draining the radiator is to remove the radiator cap and open the drain valve at the bottom of the radiator.
Coat the plug threads with pipe sealer or Teflon tape before re-installation.