[FMX04 , F8]Need help on Progressive streaming

hi,
am i doing the right thing for progressive streaming
i tried the following code:
//****
nc = new NetConnection();
nc.connect(null);

ns = new NetStream();
my_video.attachVideo(ns);
ns.bufferTime(0);
ns.play(”test.flv”);
//****
but according to my understanding the seeking should not happen till video is completely loaded but in this case i seek forward as soon i play the swf… may be i think that size of file is small so that it might be loading quickly . but size of test.flv is approx 7 MB
I am trying the code on local machine the flv lies in same folder