Trying to use zpmasonry_v1.4.1 . Everything seems to work great except the main overall page just hangs and eventually respons with a themed page that states

"Sorry, the page you are requesting cannot be found"

What I am doing wrong that the main zpmanonry page is not showing correctly?

No need to double post...

Not even close to enough info to even begin to help you out. Please see:
http://www.zenphoto.org/support/topic.php?terms-of-service=display