I remember that I tried to implement this as a separate project than Hana FLV player few months ago.
At that time, I realized that xmoov php scrip solution requires
1. xmoov.php script and some modification
3. I remember that you also need to embed Metadata into FLV video file. (You can download the tool at http://www.inlet-media.de/flvtool2/)
I was successful setting up properly, but I basically gave up using it in my production site because,
The response was horribly slow compare to the actual streaming server. (Maybe my shared hosting account was slow?) The time lag is caused by the php script searching for the particular position in a file. And I had to embed Metadata into FLV video file before uploading onto the hosting account.
I found that the traditional way (non-streaming) is much better. Since it prevents user to move forward without downloading the full video, the user does not experience the possible time lag.