Dynamic text with dragging pixel scroller

I can get dynamic text to “pixel” scroll with buttons, but I can never seem to find any way to add a dragger. The attached file uses code from flash-creations.com - works great if you hard code the text. Doesn’t work if you use dynamic text and embedded fonts. Has anyone figured out how to do this? I keep hearing that all you have to do is embed the font, but plainly, that’s not all you need to do.