I am testing 810 on another machine and although, the mce-install script seemed to run out OK, I was wondering why I got a mv cannot stat /etc/init.d/gdm before it completed running and returned to the prompt. That is the only error I saw, I know it's not much in explanation. I would have thought it would read kdm instead.
A little suggestion and Not sure if it will remain with the final verison, BUT it takes a while to load up Sarah after the initial A/V wizard setup, I was wondering if a please wait or please be patient while we prepare your LMCE installation would be possible there. All it does right now is present a flashing cursor for about 5 minutes with no notification that anything is happening. Could be easily assumed that something may be wrong with the install. I know I rebooted a time or two thinking there was an issue.