Very basic animation in Poser - there are probably several ways of doing this, this is just one way.
1. Load your model.
2. Go to the end frame number box shown by the red arrow in the picture above. Change that number to 1.
3. Position your model and set up your lighting.
4. Click the Pose icon thing. It will ask you if you want to add frames, click YES.
If you want to change your lighting and camera AFTER the animation is added, go to Frame 1 and change things there. It will change all the rest of the frames.
5. Uncheck the Skip Frames in the Animation menu.
To render the animation, go to Animation at the top and his Make Movie. You have a choice of rendering into Image Files (.jpgs), AVI, or Flash.
You also have a choice of diffent render qualities.