One thing you may want to check is the volumes you have mounted. Go into your /Volumes directory and make sure "OS X Base System" and "OS X Install ESD" aren't there.I redownloaded from your site, recreated, the same. I assume that the issue is in some .plist file, because when I boot the installer in verbose mode it tells me straight away my Mac's board ID isn't supported. You might've deleted some line in your code because the first version worked fine.