Attached Link: http://drgeep.com

Render> **Render Dimenisions>** Set -Select-Render to exact resolution-Width, Height, ( large as you want  or the largest you computer can handle ),  Set Resolution at 300 dpi>

Render>
**Render Settings>
**Set quailty to FINAL
Render in Firefly

I'm still learning Poser 7 myself, I hope this helps. I used PoserPropack until recently. The people here a Renderosity have really helped me a lot.

If you need screen shots let me know.

BTW, Dr Geep and PU can be a great help.