Try looking at these links. It might help to shed some light on how to save or maximize memory.

Top 12 Culprits for slowing down Poser

Working with Neftis Hair

Link to Stomp

Firefly Hangs

Interesting observation about Poser6,Firefly, and obj Materials in re: Rendering

Is it stuck or is it rendering?

How can you reduce file size to improve performance?

You can also allocate more memory to Poser if you have XP. Go to the following link and scroll down until you see screenshots.

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2516735

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi