Rule #1 - Be Patient - Rule #2 - Don't ask when, if you don't contribute - Rule #3 - You have coding skills - LinuxMCE's small brother is available: http://www.agocontrol.com
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No, don't even bother.
mp4 files by default aren't crawled by UpdateMedia, but this has been fixed in 0710. use the Media Files Sync option in the web admin to select the file, and call it a LinuxMCE Video File.. It will then play properly.