You will find the character in the character library.

Left click on one of the pictures in the library, then click on the double checkmark at the bottom.

The figure should show up in the scene window.

Here is a link to a whole bunch of information geared towards new users.  You will find some links to tutorials at the bottom.  They cover adding a figure, adding a texture, posing and even how to render the image.  Very helpful if you are new to Poser.  The tutorials are done in either Poser 5 or 6, but you do the same thing inside Poser 7 because the interface hasn't changed.

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2735068&page=1#message_3201624

"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