Unable to get lyx-2.0 to work properly on a Macbook Pro

[Anand Rangarajan]

I have a Macbook Pro running Snow Leopard. lyx-1.6.10 works fine on it. 
To install it, I did the usual thing of moving the LyX App to 
Applications and running the installer which created a LyX-1.6 directory 
and copies layouts etc to it. lyx-1.6.10 is able to use the article 
class and can generate pdf output.

This is not the case with lyx-2.0.0. I dropped the application into the 
Application directory naming it lyx-2.0.0 and since there was no 
additional installer that I could find, I copied the contents of  
lyx-1.6 into a new lyx-2.0 directory. lyx-2.0 starts but complains that 
no article class can be found and therefore no output can be generated. 
How do I fix this?

Anand