[NiteWave]

don't know about mplayer. we can test seek without it.

save following code as test.html on document root:

<embed
     flashvars="file=/video.mp4&provider=http&http.startparam=start"
      width="800" height="600"
      src="/jwplayer.swf"
      allowfullscreen="true"
      allowscriptaccess="always"
      wmode="transparent"
/>

to test if the seek works. if it works, then lsws mp4 seek function works fine.