Ford Taurus

Hello everyone, I'm not liking my car at all, and it's needing more
and more repairs! I have a 97 taurus, go figure why! I need to flush
the radiator, as I have been recommended because my heater is not
working. Fan blows and all, but the air barely warms up, and as the
winter comes in, I'm getting worried, and can't figure out where the
drain plug is. I found dozens of generic draining procedures, but if I
can't find the plug, what do I do? I don't want to just put the hose
into the reservoir and let it run all day long.
Please help!
Thanks