about jigsaw 2.0alphala

I've just installed jigsaw 2.0alphala on my mechine. And when I pointed my
browser to /Admin/Editor/, I got the respond that the URL is not valid. 

I also played around with the beta version for couple
days, and I could not get access to /Admin/ after I setup authentication
for Admin directory, not even with my own password.   

I am a new user of jigsaw. I appreciate it if someone can drop me couple
lines to help me out.
		
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			$            Gao, Lei          $
			$   Email: lgao@cs.utexas.edu  $
			$      Tel: (512)916-8015      $
		        $                              $
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		     CHICKEN AND EGGS, WHICH CAME OUT FIRST?