Custom html playbar in captivate 9?

Hi,

I'm trying to customize a HTML playbar from the Templates\PlaybackFLA

I've done everything from what the tutorials said to do. With copying a folder, renaming it and replacing the image files in there. Open the project and export.

My changes to the button's don't come up. They don't export, Only the original buttons export for some reason. This is what every tutorial said to do, but I feel like I'm missing a step to this process.

Anyone who had done this, who can provide inside knowledge about this process would be great.