The updater is not available for use at this time. If you check our stickied
Install Instructions thread, you'll notice it mentioned

The Ylian male is the closest to "real people" model you will find at the moment, and if you ignore the ears, the male Dermorian may be second

Not all the models are done yet, but we'll have them eventually.
We have a whole subsection to this board called
Guides and Tutorials, and there's a
Player Guide and
Quick-Start Guide on the main website.
If you're in Hydlaa, check the sewers for some rats. If you're in Ojaveda, a more desert-looking city, you can find some rats below Brado's Tavern - there's a stairway inside.
Now as for things being dark, first make sure you have updated graphics card drivers, and second you can try to relight the map. Log out in this area, then (if you are on Windows) right-click on your PlaneShift shortcut and
-relight to the end of the target line (instead of -fullbright like in the screenshot):

It's going to take quite a bit, so don't worry if you have to leave your computer for half an hour or more - if the problem is fixed once you're in the world, take
-fullbright out. If it remains, we'll try to think of something else (and having your computer specs like processor, RAM, and video card will be useful here.)