FLVPlayback fullness_mc

Ok, so I’ve customised a skin for the FLVPlayback component from the Common\Configuration\FLVPlayback Skins\FLA\ActionScript 3.0 folder.

It’s all working fine, my custom buttons display correctly as do my seekbar handle and progress bar.

However I would now like to add a ‘fullness’ bar that tracks behind the seekBarHandle.

So…

I’ve tried adding an MC named seekBarHandle_mc or named fullness_mc, on a layer above the progressbar and below the seekhandle, but this does not work at all.

What am I missing? Has anyone managed to successfully do this?

Many thanks!