http://blog.lighttpd.net/articles/20...-with-lighttpd
I've no idea whether Premiere will inject metadata - best thing to do is to setup lighttpd with the required extensions (see link above) and test all is fine with a movie that has metadata already injected.
Once that's working a streaming, then test with a move from Premiere that you did yourself.
If it works, great, if not go the Yamdi/flvtool route and inject metadata on all your videos.