Yeah, it was probably just the first one I found on Google before

I don't have Poser to hand just now, to check it at all... but at a guess I reckon you could do as Phil says, to get the INJ pz2 file, and then go from step 6, to create your REM.

There will be some fiddling with what figure parts / actors / channels are selected, when initally saving your INJ pz2 file, with morphs, I'm guessing... I think you'd use the "select subset" button there...

...maybe someone more knowledgeable than me can confirm this all! He he...