Seek bar HELP!

hello guys! im new here. i have a complicating question.

ive been trying to get seek bar component in customize video player using flash, to work.

i have extracted a seek bar symbol and code it in the action script like as follow-

myVideoDisplay.seekBar=_mySeekBar;

but when i tried playing it, the seek bar doesnt work.
is there anything i should add? or did i code it wrongly?

please help guys.

Thanks in advance.