Attn Spam Can drivers: Need MS FlightSim reality check...

If anyone out there will admit to driving a C-172, I have a question.
In MS FlightSim 2003, Rod the VR flight instructor tells me that I
should be controlling my altitude with the throtle, and my airspeed
with the elevator? Does that make sense?

In Microsoftland, I've got to constantly play with the throtle to hold
a consistant altitude. I don't recall ever seeing a pilot do that in
any plane I've ever flown in, but I could be wrong. Opinions?

I know that PPG's fly this way, and with gliders, down=fast, and
up=slow. But what about powered aircraft?

Harry Frey